Bishir Umar. (2016). BIOGAS PRODUCTION POTENTIAL USING ANIMAL WASTES AS A SOURCE OF ENERGY FOR SELF RELIANCE AND SUSTAINABLE DEVELOPMENT - A CASE STUDY OF KATSINA STATE ABATTOIR, NIGERIA. International Journal of Research Science and Management, 3(1), 7–10. Retrieved from http://ijrsm.com/index.php/journal-ijrsm/article/view/559