N. Dussadee, K. . Reansuwan, Rameshprabu Ramaraj, and Yuwalee Unpaprom, “Removal of CO2 and H2S from biogas and enhanced compressed bio-methane gas production from swine manure and elephant grass”, Maejo Int. J. Energ. Environ. Comm. or MIJEEC, vol. 4, no. 3, pp. 39–46, Dec. 2022.