Study on Concentration of some Heavy Metals in Nile Tilapia, Oreochromis niloticus and Cat Fish, Clarias gariepinus from Lake Manzala, Egypt. jkc. 2025;1(الثالث). تاريخ الوصول أكتوبر 25, 2025. https://histt.edu.ly/ojs/index.php/tajournal/article/view/77