Prasetyo, I., N. I. F. Mukti, M. Fahrurrozi, dan T. Ariyanto. Removing Ethylene by Adsorption Using Cobalt Oxide-Loaded Nanoporous Carbon. Vol. 18, no. 1, Juni 2018, hlm. 9-16, https://journal.ugm.ac.id/v3/AJChE/article/view/8987.