MATAKUPAN R. PENDEKATAN SISTEM 2D MODEL STREETER-PHELPS UNTUK MODEL POLUSI SUNGAI. BAREKENG: J. Math. & App. [Internet]. 1Mar.2011 [cited 20Apr.2024];5(1):1-. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/176