Ngu, Penny Ai Huong and Hamid, Hashibah and Aziz, Nazrina (2015) Multiple correspondence analysis for handling large binary variables in smoothed location model. AIP Conference Proceedings, 1691 (1). 050018. ISSN 0094-243X

Hamid, Hashibah and Aziz, Nazrina and Ngu, Penny Ai Huong (2016) Variable extractions using principal component analysis and multiple correspondence analysis for large number of mixed variables classification problems. Global Journal of Pure and Applied Mathematics, 12 (6). pp. 5027-5038. ISSN 0973-1768

Ngu, Penny Ai Huong and Hamid, Hashibah and Aziz, Nazrina (2016) The performance of smoothed location model with PCA+Indicator MCA and PCA+Adjusted MCA. AIP Conference Proceedings, 1782. 050008. ISSN 0094-243X