Sil, Anirban, Mainak Barman, Saipayan Ghosh, Kaushik Pramanik, Sourav Sen, and Kunal Saha. “Recent Status of Global Polychlorinated Biphenyls Contamination”. International Research Journal of Pure and Applied Chemistry 21, no. 11 (July 30, 2020): 57-67. Accessed August 14, 2020. https://journalirjpac.com/index.php/IRJPAC/article/view/30224.