RESURRECCION, R.; ALVAREZ, M. T. Efficiency and Effectiveness of Utility Billing Management System (UBMS) in the Collection of Electric Services. Isabela State University Linker: Journal of Education, Social Sciences and Allied Health, [S. l.], v. 2, n. 1, p. 93–101, 2025. Disponível em: https://www.isujournals.ph/index.php/jessah/article/view/187. Acesso em: 13 sep. 2025.