PELANDIANA, A L; ADO, R G. Web-based Billing and Collection System for a Municipal Water and Services Unit. KnE Social Sciences, [S. l.], v. 3, n. 6, p. 1–30, 2018. DOI: 10.18502/kss.v3i6.2371. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/2371. Acesso em: 12 jul. 2025.