Nuranjani, Nuranjani, et al. “Immobilization of Cadmium (CD) in Soil from the Talang Gulo Landfill Using Palm Shell Biochar”. KESANS : International Journal of Health and Science, vol. 5, no. 5, Feb. 2026, pp. 890-03, doi:10.54543/kesans.v5i5.573.