Salsadilla N, Husnan R, Labdul BY. Backflow Analysis in the Downstream of Bolango River through Numerical Integration Method. j. Teknik SDA [Internet]. 2025 Dec. 31 [cited 2026 May 21];5(2). Available from: https://jtsda.oedadesign.com/index.php/jtsda/article/view/81