Jekayinfa, S., Adebayo, A., Ogunkunle, O., Kareem, S., Olaleye, C. and Okoya, J. 2014. DESIGN AND CONSTRUCTION OF A METALLIC BIO-DIGESTER FOR THE PRODUCTION OF BIOGAS FROM COW DUNG. LAUTECH Journal of Engineering and Technology. 8, 2 (Nov. 2014), 182-187.