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 (Jan. 2017).