Prasetyo, I., N. I. F. Mukti, M. Fahrurrozi, and T. Ariyanto. “Removing Ethylene by Adsorption Using Cobalt Oxide-Loaded Nanoporous Carbon”. ASEAN Journal of Chemical Engineering, Vol. 18, no. 1, June 2018, pp. 9-16, https://journal.ugm.ac.id/v3/AJChE/article/view/8987.