Source identification and potential health risks from elevated groundwater nitrate contamination in Sundarbans coastal aquifers, India oleh Subodh Chandra Pal, Tanmoy Biswas, Asit Kumar Jaydhar, Dipankar Ruidas, Asish Saha, Indrajit Chowdhuri, Sudipto Mandal, Aznarul Islam, Abu Reza Md. Towfiqul Islam, Chaitanya B. Pande, Edris Alam, Md Kamrul Islam