Akmal, A., Aji, A. A., Auvaria, S. W., Nengse, S., & Auliansyah, Y. D. (2025). The Pollutant Index (IP) Method for Determining Water Quality Status in the Tambak Oso River Gunung Anyar. Envirous, 5(2), 1–7. Retrieved from https://envirous.upnjatim.ac.id/index.php/envirous/article/view/339