Abu Seman, A, N H. Berahim, and M G.M. Noh. “Mitigating CO2 Emission Via Catalytic Conversion to Methane : A Feasibility Study of Metal Oxide Supported Nickel Based Catalysts”. International Journal of Engineering & Technology 7, no. 4.14 (December 24, 2019): 137–141. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/27514.