Richard, Edwin N., Aloyce, W. Mayo., and Richard, J. Kimwaga. 2018. “Characteristics And Anaerobic Digestion Of Fruits Wastes From Ubungo-Urafiki Market In Dar Es Salaam”. Tanzania Journal of Engineering and Technology 37 (1). https://journals.udsm.ac.tz/index.php/tjet/article/view/2280.