Mustaffa, Jamaludin and Hamzah, Mohd Hilmi and Ngah, Kamaruddin (2013) Demonstrasi jalanan: Kajian kes Perhimpunan Gabungan Pilihan Raya dan Adil (BERSIH) di Malaysia. In: Second International Conference on Elections & Democracy 2013, 6-7 November 2013, Faculty of Social Sciences, Universiti Malaysia Sarawak. (Unpublished)

Mustaffa, Jamaludin and Ngah, Kamaruddin and Hamzah, Mohd Hilmi and Ahmad, Za'im (2014) Faktor-faktor penglibatan masyarakat dalam Perhimpunan Gabungan Pilihan Raya dan Adil (BERSIH) di Malaysia. In: Seminar Hubungan Keselamatan dan Politik Antarabangsa Malaysia - Indonesia, 13-17 Februari 2015, Medan, Indonesia. (Unpublished)

Ngah, Kamaruddin and Mustaffa, Jamaludin and Zakaria, Zaherawati and Noordin, Nazni and Mohamed Sawal, Mohd Zool Hilmie (2011) Formulation of agenda 21 process indicators for Malaysia. Journal of Management and Sustainability , 1 (1). pp. 82-89. ISSN 1925-4725

Mustaffa, Jamaludin and Ngah, Kamaruddin (2015) Jenayah rogol: Isu dan penyelesaian. Monograph Series . Sintok, Universiti Utara Malaysia. ISBN 978-967-0876-00-9

Abdul Rahman, Mohd Fitri and Ngah, Kamaruddin and Mustaffa, Jamaludin and Hamid, Kamal and Hamzah, Mohd Hilmi (2014) Kualiti hidup peladang. In: International Social Development Conference 2014 (ISDC 2014), 12 – 13 August 2014, Bayview Hotel Langkawi, Malaysia.

Mustaffa, Jamaludin and Ngah, Kamaruddin (2008) Perancangan pembangunan di Malaysia dan penerapan konsep bandar selamat. In: Prosiding Seminar Kebangsaan Polisi Awam Malaysia Ke - 6, Pembangunan Sosial Ke Arah Komuniti Lestari, 16 - 17 Ogos 2008 . (Unpublished)

Zakaria, Zaherawati and Ngah, Kamaruddin and Mustaffa, Jamaludin and Noordin, Nazri and Mohamed Sawal, Mohd Zool Hilmie and Yaacob, Mahazril 'Aini (2011) Public satisfaction in local authorities: A case study in Kedah. International Review of Social Sciences and Humanities, 1 (2). pp. 46-54. ISSN 2248-9010

Zakaria, Zaherawati and Noordin, Nazni and Yaacob, Mahazril 'Aini and Ngah, Kamaruddin and Mohamed Sawal, Mohd Zool Hilmie and Mustaffa, Jamaludin (2011) Relationship between waste disposal and public satisfaction in local authorities in Kedah. Canadian Social Science, 7 (4). pp. 53-57. ISSN 1712-8056