Dinata, M. et al. 2026. Assessing Water Pollution at Sail River: Insights from Plankton Abundance as an Ecological Indicator in Riau, Indonesia. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram. 14, 3 (Jul. 2026), 1819–1836. DOI:https://doi.org/10.33394/j-ps.v14i3.20653.