I., Hussain, Jalil A. A., Mamat C. R., Siang T. J., Azami M. S., and Hambali H. U. 2019. “Role of Promoters in Hoisting the Catalytic Performance for Enhanced CO Methanation”. Journal of Energy and Safety Technology (JEST) 2 (1). https://doi.org/10.11113/jest.v2n1.38.