Investasi Infrastruktur Air Bersih Pipa di Indonesia, Renungan 79 Tahun Indonesia Merdeka. Jurnal Persatuan Nasional, [S. l.], v. 1, n. 1, p. 31–33, 2024. Disponível em: https://jurnalpersatuannasional.id/index.php/jpnasional/article/view/1. Acesso em: 25 jul. 2026.