MATHEW, SOJOMON, and R. RADHIKA. “STATUS OF HEAVY METAL CONTAMINATION IN MAJOR RIVERS OF KERALA, SOUTH INDIA – A REVIEW”. UTTAR PRADESH JOURNAL OF ZOOLOGY 43, no. 21 (November 8, 2022): 23–31. Accessed June 28, 2025. https://www.mbimph.com/index.php/UPJOZ/article/view/3207.