C. Soodsuansi, S. Kulprathipunja, C. Ratanatawanate, and P. Rangsunvigit, “Adsorption of Methane and Carbon Dioxide on Activated Carbon and ZIF-8 (Zeolitic Imidazolate Framework) ”, Chemical Engineering Transactions, vol. 70, pp. 1633-1638, Aug. 2018.