Sutaryo, S., Adiwinarti, R., Sahrudi, D., Huda, M.M., Himawan, F.H. and Ward, A.J. 2022. Anaerobic digestion co-substrate of dairy cow manure and tofu cake: focusing on mixing organic ratio. Journal of Environmental Engineering and Landscape Management. 30, 4 (Dec. 2022), 493–499. DOI:https://doi.org/10.3846/jeelm.2022.18058.