Handoco, E., & Barat, W. O. B. (2026). Plankton Community Structure as a Bioindicator of Lake Toba Water Conditions in Balige District Toba Regency. Panthera : Jurnal Ilmiah Pendidikan Sains Dan Terapan, 6(3), 1946–1954. https://doi.org/10.36312/panthera.v6i3.1416