Er Xin Yi, Seow Ta Wee, Chi Kim Lim, Zaharah Ibrahim, and Ngai Weng Chan, “Combined Adsorption and Biological Treatment for Landfill Leachate Management”, J. Adv. Res. Fluid Mech. Therm. Sc., vol. 50, no. 1, pp. 26–31, Oct. 2018.