Nedi, Syahril, Yolanda Manik, and Elizal elizal. “SEDIMENT FRACTIONS AND ORGANIC MATERIALS IN THE DUMAI RIVER ESTUARY WATERS, RIAU, INDONESIA”. Asian Journal of Aquatic Sciences 1, no. 1 (January 8, 2020): 66-71. Accessed August 25, 2025. https://jptl.ejournal.unri.ac.id/index.php/ajoas/article/view/10.