Kabir M. B., Isah A., Danjumma A. M., and Sani U. M., “Removal of contaminants from biogas: a study on H2S, CO2, and water vapor reduction”, JOBASR, vol. 2, no. 2, pp. 83–87, Jun. 2024, doi: 10.33003/jobasr-2024-v2i2-55.