DUMRUANGSRI, Chananchida, Prukraya PONGYEELA, and Juntima CHUNGSIRIPORN. 2021. “Biogas Upgrading to Biomethane by CO2 Removal Using Water Absorber With Microbubble Technique”. Walailak Journal of Science and Technology (WJST) 18 (10):Article 9304 (13 pages). https://doi.org/10.48048/wjst.2021.9304.