Heriyanti, S. I., Prasetyo, J., Murti, G. W., Sholihah, A., & Adiprabowo, A. B. (2021). Scale Up of Biogas Starter Production: Enrichment of Activated Sludge from Biogas for Bio-Hydrogen Production. Jurnal Ilmiah Teknik Kimia, 5(2), 115–123. https://doi.org/10.32493/jitk.v5i2.11101