Hasnelly, Yasin S, Agustian, Darmawan. Study of Palm Shell Biochar Capability in Absorbing Metals on Landfill Leachate. Psychosocial rehabilitation [Internet]. 2020 Jun. 30 [cited 2025 Aug. 17];24(6):13231-9. Available from: https://www.psychosocial.com/index.php/ijpr/article/view/7780