NUGROHO, Iwan. PENGEMBANGAN DAN KEBUTUHAN INVESTASI SEKTOR AIR BERSIH DI JAWA TIMUR. Cakrawala, [S. l.], v. 1, n. 2, p. 13–21, 2018. DOI: 10.32781/cakrawala.v1i2.74. Disponível em: http://cakrawalajournal.org/index.php/cakrawala/article/view/74. Acesso em: 30 aug. 2026.