PENGARUH POLA AGIHAN HUJAN TERHADAP PROFIL MUKA AIR DI SUNGAI OPAK. FROPIL (Forum Profesional Teknik Sipil), [S. l.], v. 2, n. 2, p. 135–150, 2018. DOI: 10.33019/fropil.v2i2.277. Disponível em: https://journal.ubb.ac.id/index.php/fropil/article/view/277. Acesso em: 4 may. 2026.