Ermadani, A. Viviani, Yasdi, S. Yanopa, Suryanto, Arsyad, Ar, and Sarman. “The The Use of Activated Charcoal from Corn Cobs As Adsorbent of Heavy Metals from Groundwater”. Revista Brasileira De Engenharia De Biossistemas, vol. 17, Sept. 2023, doi:10.18011/bioeng.2023.v17.1191.