SYAHPUTRA, R.; ARROZAK, L. F. Power Transformer Loading Analysis in Order to Improve the Reliability of a Substation. Journal of Electrical Technology UMY, [S. l.], v. 1, n. 4, p. 165–175, 2019. DOI: 10.18196/jet.1422. Disponível em: https://journal.umy.ac.id/index.php/jet/article/view/7451. Acesso em: 12 sep. 2025.