“Investigation of Selected Heavy Metals Among Tabbed Freshwater Species As Bioindicator of Freshwater Pollution in River Etai in Northern Pakistan”. Physical Education, Health and Social Sciences 3, no. 1 (March 8, 2025): 1–11. Accessed May 6, 2026. https://journal-of-social-education.org/index.php/Jorunal/article/view/166.