Kamopas, W., Asanakham, A. and Kiatsiriroat, T. 2016. Absorption of CO2 in Biogas with Amine Solution for Biomethane Enrichment. Journal of Engineering and Technological Sciences. 48, 2 (May 2016), 231-241. DOI:https://doi.org/10.5614/j.eng.technol.sci.2016.48.2.9.