Ahmadu, T. O. “Evaluation of Energy Consumption and Carbon Dioxide Emission from a Solar / Gas Powered Absorption Air Conditioning System in Zaria”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 15, no. 4 (December 2, 2019): 837-846. Accessed May 23, 2025. https://www.azojete.com.ng/index.php/azojete/article/view/138.