Azmi Rohani, Lukman Abu Bakar, Wahid Razzaly, Siti Sarawati Johar. PENA JAUHAR SIRI 2. Penerbit UTHM; 2019. Accessed July 18, 2024. https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/232