Ahmad, Nazihah and Cheah Soo Thape, Neendha (2024) Solving Bipolar Fully Fuzzy Sylvester Matrix Equations with Negative Fuzzy Numbers. Journal of Computational Innovation and Analytics (JCIA), 3 (1). pp. 61-82. ISSN 2821-3408

Misiran, Masnita and Ahmad, Nazihah and Md Yusof, Zahayu and Misiran, Maslina (2022) Constructing STEM 3R Activity through Service-Learning Program during Movement Restriction. Asian Journal of Assessment in Teaching and Learning, 12 (1). pp. 63-75. ISSN 2821-2916

Ahmad Mustaffa, Nurakmal and Zaibidi, Nerda Zura and Ahmad, Nazihah and Ang, Wei Chern (2022) A Green Fuzzy Multi-Criteria Decision Making Model for Pharmaceutical Waste Disposal Management. Technical Report. UUM. (Submitted)

Misiran, Masnita and Ahmad, Nazihah and Md Yusof, Zahayu and Abdul Rahim, Ummi Rohaizad (2022) Utilizing Experiential Learning to Improve Financial Literacy Among Young Adults Through STEM Service-Learning Activity During Movement Control Order. International STEM Journal, 3 (1). pp. 1-16. ISSN 2196-7822

Misiran, Masnita and Shi Er, Tan and Pheng Hong, Augustus Saw and Mohd Subri, Nur Azuin and Ahmad Darus, Nur Syazana and Md Yusof, Zahayu and Ahmad, Nazihah (2021) Early Detection Method for Money Fraudulent Activities on E-commerce Platform via Sentiment Analysis. Journal of Entrepreneurship and Business, 9 (2). pp. 121-142. ISSN 2289-8298

Ahmad, Nazihah and Ibrahim, Haslinda (2021) An Efficient Computational Algorithm for Solving Arbitrary Sylvester Matrix Equations in Fuzzy Control Theory (S/O 14179). Technical Report. UUM. (Submitted)

Mohd Sharif, Nurul Atikah and Ahmad, Norazura and Ahmad, Nazihah and Mat Desa, Wan Laailatul Hanim and Helmy, Khaled Mohamed and Wei, Chern Ang and Zainol Abidin, Ida Zaliza (2019) A fuzzy rule-based expert system for asthma severity identification in emergency department. Journal of Information and Communication Technology (JICT), 18 (4). pp. 415-438. ISSN 1675-414X

Ahmad, Nazihah and Mat Kasim, Maznah and KRS, Shanmugam (2019) Comparative analysis of crisp and fuzzy multi- criteria decision making methods for supplier selection in an automotive manufacturing industry. International Journal of Supply Chain Management (IJSCM), 8 (1). pp. 951-955. ISSN 2050-7399

Ahmad, Nazihah and Yaakob, Abdul Malek and Gegov, Alexander and Mat Kasim, Maznah (2019) Integrating fuzzy AHP and Z-TOPSIS for supplier selection in an automotive manufacturing company. AIP Conference Proceedings, 2138. pp. 1-7. ISSN 0094-243X

Aziz, Nazrina and Saaban, Azizan and Ahmad, Nazihah (2019) Recent trends in applied and associated mathematical sciences. Universiti Utara Malaysia Press, Sintok. ISBN 978-967-2210-27-6

Ahmad, Nazihah and Ibrahim, Hawa and Mat Kasim, Maznah (2018) Matrices and linear systems. UUM Press, Sintok. ISBN 978-967-2064-79-4

Asaad, Baravan A. and Ahmad, Nazihah and Omar, Zurni (2018) Operation-separation axions via γ-ps-open sets. International Journal of Pure and Applied Mathematics, 118 (3). pp. 686-699. ISSN 1311-8080

Mohommed, Eman F. and Ibrahim, Haslinda and Ahmad, Nazihah (2017) Enumeration Class of Polyominoes Defined by Two Column. IOSR Journal of Mathematics (IOSR-JM), 13 (01). pp. 44-49. ISSN 2278-5728

Mohommed, Eman F. and Ibrahim, Haslinda and Ahmad, Nazihah (2017) Enumeration Of N-Connected Ominoes Inscribed In An Abacus. JP Journal of Algebra, Number Theory and Applications, 39 (6). pp. 843-874. ISSN 0972-5555

Mohommed, Eman F. and Ibrahim, Haslinda and Ahmad, Nazihah and Mahmood, Ammar Seddiq (2016) Embedding the outer chain movement for main partition of β-number with length [1, 0, 0,…]. AIP Conference Proceedings, 1761. 020076-1-020076-6. ISSN 0094-243X

Mohommed, Eman F. and Ahmad, Nazihah and Ibrahim, Haslinda (2016) Intersection of main James abacus diagram for the outer chain movement with length [1, 0, 0…]. Journal of Telecommunication, Electronic and Computer Engineering, 8 (8). pp. 51-56. ISSN 2180-1843

Mohommed, Eman F. and Ahmad, Nazihah and Ibrahim, Haslinda and Mahmood, Ammar Seddiq (2016) Nested chain movement of length 1 of beta number in James abacus diagram. Global Journal of Pure and Applied Mathematics, 12 (4). pp. 2953-2969. ISSN 0973-1768

Mohd Diah, Ijlal and Aziz, Nazrina and Ahmad, Nazihah (2016) Relative Risk Estimation of Tuberculosis with Standardized Morbidity Ratio in Malaysia. Global Journal of Pure and Applied Mathematics, 12 (5). pp. 4011-4019. ISSN 0973-1768

Ahmad, Nazihah and Malkawi, Ghassan and Ibrahim, Haslinda (2016) Solution Of Lr-Fuzzy Linear Systemwith Trapezoidal Fuzzy Numberusing Matrix Theory. ARPN Journal of Engineering and Applied Sciences, 11 (18). pp. 10922-10930. ISSN 1819-6608

Mohd Diah, Ijlal and Aziz, Nazrina and Ahmad, Nazihah (2016) Tuberculosis Disease Mapping with Poisson-Gamma Model in Malaysia. Research Journal of Applied Sciences, 11 (9). pp. 822-825. ISSN 0094-243X

Mohd Diah, Ijlal and Aziz, Nazrina and Ahmad, Nazihah (2016) Tuberculosis Disease Mapping with Poisson-Gamma Model in Malaysia. Research Journal of Applied Sciences, Engineering and Technology, 11 (9). pp. 822-825. ISSN 2040-7459

Mohommed, Eman F. and Ibrahim, Haslinda and Mahmood, Ammar Seddiq and Ahmad, Nazihah (2015) Embedding chain movement in James Diagram for partitioning beta number. In: 2nd Innovation and Analytics Conference & Exhibition (IACE 2015), 29 September –1 October 2015, TH Hotel, Alor Setar, Kedah, Malaysia.

Ibrahim, Adyda and Zulkepli Hew, Jafri and Aziz, Nazrina and Ahmad, Nazihah and Abdul Rahman, Syariza (2015) Preface: 2nd Innovation and Analytics Conference & Exhibition, (IACE 2015). In: 2nd Innovation and Analytics Conference & Exhibition (IACE 2015), 29 September –1 October 2015, TH Hotel, Alor Setar, Kedah, Malaysia.

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2015) An algorithm for a positive solution of arbitrary fully fuzzy linear system. Computational Mathematics and Modeling, 26 (3). pp. 436-465. ISSN 1046-283X

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda and Albayari, Diya' J. (2015) A Note On “Solving Fully Fuzzy Linear Systems By Using Implicit Gauss–Cholesky Algorithm”. Computational Mathematics and Modeling, 26 (04). 01-06. ISSN 1573-837X

Asaad, B.A. and Ahmad, Nazihah and Omar, Zurni (2015) (γ, β)-PS-irresolute and (γ, β)-PS-continuous functions. International Journal of Pure and Apllied Mathematics, 99 (1). pp. 77-96. ISSN 1311-8080

Ahmad, Nazihah and Malkawi, Ghassan and Ibrahim, Haslinda (2015) Solution of LR-fuzzy linear system with trapezoidal fuzzy number using matrix theory. In: Malaysian Technical Universities Conference on Engineering and Technology 2015 (MUCET2015), October 11-13, 2015, KSL Hotel, Johor Bahru, Malaysia.. (Unpublished)

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2015) Solving The Fully Fuzzy Sylvester Matrix Equation With Triangular Fuzzy Number. Far East Journal of Mathematical Sciences (FJMS), 98 (01). pp. 37-55. ISSN 0972-0871

Sapiri, Hasimah and Ahmad, Nazihah and Aziz, Nazrina and Zainon, Fatinah (2015) Using causal loop diagram in understanding financial activities of Malaysia Pension Fund. Global Journal of Business and Social Science Review, 1 (2). pp. 359-364. ISSN 2289-8506

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, H. and Albayari, Diya’ J. (2015) A note on “Solving fully fuzzy linear systems by using implicit gauss–cholesky algorithm”. Computational Mathematics and Modeling, 26 (4). pp. 585-592. ISSN 1046-283X

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2015) A note on “The nearest symmetric fuzzy solution for a symmetric fuzzy linear system”. Seria Matematica, 23 (2). pp. 173-177. ISSN 1224-1784

Mohd Darus, Maizon and Ibrahim, Haslinda and Karim, Sharmila and Omar, Zurni and Ahmad, Nazihah (2014) Complete graph K4 decomposition into circuits of length 4. In: 21st National Symposium on Mathematical Sciences (SKSM21), 6–8 November 2013, Penang, Malaysia.

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2014) Finite Solutions Of Fully Fuzzy Linear System. In: International Conference On Quantitative Sciences And Its Applications (ICOQSIA 2014): Proceedings Of The 3rd International Conference On Quantitative Sciences And Its Applications, 12–14 August 2014, Langkawi, Kedah Malaysia.

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2014) On the weakness of linear programming to interpret the nature of solution of fully fuzzy linear system. Journal of Uncertainty Analysis and Applications, 2 (1). pp. 16-23. ISSN 2195-5468

Asaad, Baravan A. and Ahmad, Nazihah and Omar, Zurni (2014) γ-PS-functions in topological spaces. International Journal of Mathematical Analysis, 8 (6). pp. 285-300. ISSN 1314-7579

Asaad, Baravan A. and Ahmad, Nazihah and Omar, Zurni (2014) γ-PS-generalized closed sets and γ-PS-T 1/2 spaces. International Journal of Pure and Apllied Mathematics, 93 (2). pp. 240-260. ISSN 1311-8080

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda and Alshmari, Bander (2014) Row reduced echelon Form for solving fully fuzzy system with unknown coefficients. Journal of Fuzzy Set Valued Analysis, 2014. pp. 1-18. ISSN 21934169

Malkawi, Ghassan and Ahmad, Nazihah and Ibrahim, Haslinda (2014) Solving fully fuzzy linear system with the necessary and sufficient condition to have a positive solution. Applied Mathematics & Information Sciences, 8 (3). pp. 1003-1019. ISSN 1935-0090

Karim, Sharmila and Ibrahim, Haslinda and Omar, Zurni and Ahmad, Nazihah (2013) New Permutation Generation Under Exchange Strategy (PGuES). Modern Applied Science, 7 (8). pp. 15-21. ISSN 1913-1844

Kalimuthu Rajoo, Shanmugam Sundram and Mat Kasim, Maznah and Ahmad, Nazihah (2013) Evaluating supplier quality performance using analytical hierarchy process. In: AIP Conference Proceedings, 5–7 February 2013, Kuala Lumpur, Malaysia.

Saaban, Azizan and Ahmad, Nazihah and Hassan, Mohammad Hasnan and Mansor, Kamarun Hizam and Mohamad, Mohd Saiful Adli and Mohd Alifiah, Fathilah and Khalid, Kamal (2012) Scattered data interpolation using combination method of triangular patches. Project Report. UUM Press, Universiti Utara Malaysia.

Mohd Harif, Mohd Amy Azhar and Zaini, Bahtiar Jamili and Mat Yusof, Muhammad and Mansor, Rosnalini and Ahmad, Nazihah (2006) Pemilihan jawatankuasa pembangunan pelajar kolej kediaman menggunakan pendekatan proses hirarki analitik kabur: Kajian kes di Universiti Utara Malaysia. In: http://core.kmi.open.ac.uk/display/11777299, 2006, --. (Unpublished)