Parven, N, MA Bashar, and SB Quraishi. “Bioaccumulation of Heavy and Essential Metals in Trophic Levels of Pond Ecosystem”. Journal of Bangladesh Academy of Sciences 33, no. 1 (July 28, 2009): 131–138. Accessed August 17, 2024. https://banglajol.info/index.php/JBAS/article/view/2957.