Azmi Rohani, Lukman Abu Bakar, Wahid Razzaly, and Siti Sarawati Johar, PENA JAUHAR SIRI 2. Penerbit UTHM, 2019. Accessed: Jul. 01, 2024. [Online]. Available: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/232