Chronological innovations in biogas biodigesters design technology in Ethiopia. Journal of Clean Technology, [S. l.], v. 3, n. 1, p. 45–65, 2026. DOI: 10.15294/joct.v3i1.34362. Disponível em: https://journal.unnes.ac.id/journals/joct/article/view/34362. Acesso em: 30 mar. 2026.