PENGARUH POLA AGIHAN HUJAN TERHADAP PROFIL MUKA AIR DI SUNGAI OPAK. FROPIL (Forum Profesional Teknik Sipil) [Internet]. 2018 Aug. 23 [cited 2026 Jun. 19];2(2):135-50. Available from: https://www.journal.ubb.ac.id/index.php/fropil/article/view/277