DAUD, Z.; ABUBAKAR, M. H.; AWANG, H.; AHMED, Z. B.; ROSLI, M. A.; RIDZUAN, M. B.; ALIYU, R.; TAJARUDIN, H. A. Optimization of Batch Conditions for COD and Ammonia Nitrogen Removal Using cockle shells Through Response Surface Methodology. International Journal of Integrated Engineering, v. 10, n. 9, 1 Jan. 2019.