Chakraborty, Shankhadeep, and Abhijit Mitra. 2018. “Heavy Metal Pollution Status in the Sediment Layer in World Heritage Site: Indian Sundarbans Estuarine Region”. Vietnam Journal of Science and Technology 56 (4). Hanoi, VN:474-81. https://doi.org/10.15625/2525-2518/56/4/9815.