Silahudin, Ahmad Nur Solihin, and Zawawi Daud. “Adsorption of Pollutants in Sanitary Landfill Leachate Using Granular Oyster Shell and Perlite”. Recent Trends in Civil Engineering and Built Environment, vol. 6, no. 2, Feb. 2026, pp. 71-79, https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/15253.