Mohamad, S.; Kartini Abu Bakar, N.; Razali Ishak, A.; Surikumaran, H.; Pandian, K.; Raoov, M.; Nadhirah Mohamad Zain, N.; Chandrasekaram, K. Removal of Phosphate by Paper Mill Sludge: Adsorption Isotherm and Kinetic Study. ajc 2014, 26, 3545-3552.