Badarulzaman, Nur Azam. “A Short Review on Aluminium Smelting and Its Future Prospect in Malaysia Metal Industries”. International Journal of Integrated Engineering 7, no. 2 (October 21, 2015). Accessed May 17, 2024. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/1095.