PURWOKO, P.; ROMLI, M.; SUPRIHATIN, S.; HADITJAROKO, L. Alkaline Pretreatment of Sorghum Stalk and Co-Digestion with Sludge for Biogas Production. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 24, n. 1, p. 15–23, 2015. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4357. Acesso em: 29 apr. 2024.