MBUGUA, J. K.; MWANIKI, J. M.; NDUTA, D. M.; MWAURA, F. B. Upgrading biogas using Eburru zeolitic rocks and other adsorbent materials to remove carbon dioxide and hydrogen sulphide. Tanzania Journal of Science, [S. l.], v. 47, n. 2, p. 421–431, 2021. DOI: 10.4314/tjs.v47i2.2. Disponível em: http://tjs.udsm.ac.tz/index.php/tjs/article/view/636. Acesso em: 22 oct. 2021.