Farhad, Mohammad Hanif, Hafiz Mohd Sarim, and Bahari Bin Idrus. “Procedural Database Normalization Level Validation for Electronic Certificate Issuance”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 16, no. 1 (June 1, 2014): 251–260. Accessed July 3, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/2286.