Pinto, A. C., T. G. da . Silva Filho, and E. P. Machado. “Evaluation of Photovoltaic Microgeneration Systems Connected to Utility: Cases Studies in Petrolina”. IEEE Latin America Transactions, vol. 18, no. 9, Mar. 2021, pp. 1538-46, https://latamt.ieeer9.org/index.php/transactions/article/view/2274.