Nurrohman, Andy, M. Widyastuti, & Slamet Suprayogi. " EVALUATION OF WATER QUALITY USING POLLUTION INDEX IN CIMANUK WATERSHED, INDONESIA." ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) [Online], 13.1 (2019): 74-84. Web. 16 Oct. 2025