Saleh, Haeruddin, Batara Surya, and H. Hamsina. “Implementation of Sustainable Development Goals to Makassar Zero Waste and Energy Source”. International Journal of Energy Economics and Policy 10, no. 4 (May 16, 2020): 530–538. Accessed July 3, 2022. https://econjournals.com/index.php/ijeep/article/view/9453.