Ibrahim, F. N. D., Daud, Z., Abdul Latiff, A. A., Ridzuan, M. B., Ahmad, Z., Awang, H. and Marto, A. (2017) “Ammoniacal Nitrogen and COD Removal Using Zeolite-Feldspar Mineral Composite Adsorbent”, International Journal of Integrated Engineering, 8(3). Available at: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/1478 (Accessed: 31October2020).