Yusuf, A, D I Kusumastuti, and E P Wahono. “Base Flow Index of Way Seputih River at Buyut Udik”. Journal of Engineering and Scientific Research 1, no. 2 (December 17, 2020): 74–77. Accessed June 30, 2025. https://jesr.eng.unila.ac.id/index.php/ojs/article/view/27.