VEBRYANTY, E.; YULIANA, Y. Pengaruh Kualitas Pelayanan Air Bersih dan Sistem Informasi Biaya Tagihan Air Terhadap Kepuasan Pelanggan PDAM Tirta Silaupiasa Kisaran. IJESPG (International Journal of Engineering, Economic, Social Politic and Government), [S. l.], v. 2, n. 1, p. 148–160, 2024. DOI: 10.26638/ijespg.101. Disponível em: http://ijespgjournal.org/index.php/ijespg/article/view/101. Acesso em: 2 nov. 2025.