Lissanu, T. ., Assefa, A. ., Fenta, L. ., Ayalew, A. . and Gemeda, S. (2021) “Effects of Anaerobic Co-digestion of Cow Dung using Biodegradable Municipal Wastes for Biogas Production”, Abyssinia Journal of Engineering and Computing, 1(2), pp. 22–30. doi: 10.20372/ajec.2021.v1.i2.241.