Mazlan, Norfarhana, Chin-Fang Tan, Mohamad Abid Kamaruzzaman, Madinah Adrus, and M.T. Abdullah. “ Malaysia”. Borneo Journal of Resource Science and Technology 5, no. 2 (June 29, 2016): 79–83. Accessed July 3, 2024. https://publisher.unimas.my/ojs/index.php/BJRST/article/view/225.