Ezekwugo, J. U., Ibe, A. et Alwell, N. (2022) « Optimization of Integrated Energy Systems in a Developing Economy using Clean Non-Renewable Energy (Natural Gas) », International Journal of Economics and Management Sciences, 1(1). Disponible sur: https://ijemsjournal.com/index.php/home/article/view/8 (Consulté le: 25 février 2025).