Hutapea, Timbul Parningotan, et al. “ANALISIS HIDROLOGI DAN HIDROLIKA PERENCANAAN KOLAM RETENSI JALAN MARELAN 4”. Jurnal Insinyur Profesional, vol. 5, no. 1, May 2025, https://jurnal.unimed.ac.id/2012/index.php/jip/article/view/65129.