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