“A STUDY ON WATER QUALITY OF RAW WATER SOURCES OF PDAM (MUNIPICAL WATER COMPANY) BANDARMASIH”. TROPICAL WETLAND JOURNAL 1, no. 1 (November 16, 2015): 39–45. Accessed September 21, 2026. https://uc.ulm.ac.id/index.php/twj/article/view/16.