Umeghalu, I.C.E., E.I.U. Nwuba, D.O. Onukwuli, I.F. Okonkwo, and J.O. Ngini. “Kinetics of Biogas Production from Fermentation Broth of Wild Cocoyam Codigested With Cow Paunch in Batch Mode”. Scientific Journal of Pure and Applied Sciences 4, no. 3 (March 27, 2015): 98-104. Accessed January 18, 2022. http://www.sjournals.com/index.php/sjpas/article/view/463.