Begum, Shawkat Ara, Qamar Banu, and Baharul Hoqure. ā€œ Cadmium and Mercury on the Gill Histology of Clarias Batrachus Lā€. Chittagong University Journal of Biological Sciences 4, no. 1 (January 18, 2013): 13ā€“23. Accessed July 17, 2024. https://banglajol.info/index.php/CUJBS/article/view/13383.