KIVAISI, A. K. Pretreatment of robusta coffee hulls and co-digestion with cow-dung for enhanced anaerobic digestion. Tanzania Journal of Science, [S. l.], v. 28, n. 2, p. 1–10, 2021. Disponível em: https://tjs.udsm.ac.tz/index.php/tjs/article/view/600. Acesso em: 20 apr. 2024.