Israyandi, Israyandi, 		Agustiyo, Hendry, AND 		Annisa Fithry, Dwi.
" Adsorption Isotherms and Kinetics of Heavy Metals Using H3PO4-Activated Carbon Derived from Oil Palm Fronds" <em>Journal of Ocean, Mechanical and Aerospace -science and engineering-</em> [Online], Volume 70 Number 2 (30 July 2026)