Ha, Le, 		Hoa, Bui, AND 		Dau, Pham.
" Effect of Heavy Metals on the Activity of Catalase and Glutathione-S-Transferase in Nile Tilapia Fish      (Oreochromis niloticus)" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 37 Number 4 (7 December 2021)