Asogwa , I. S., C. U. Ugwuanyi, and C. N. Anumudu. “DETERMINANTS OF RENEWABLE ENERGY USE AND CARBON EMISSION INTENSITY IN SUB SAHARA AFRICA”. JOURNAL OF ECONOMICS AND ALLIED RESEARCH, vol. 2, no. 2, June 2018, pp. 66-77, http://jearecons.com/index.php/jearecons/article/view/213.