BANIK, S., and A. SINGH. “EFFECTS OF PHYSICO-CHEMICAL CHARACTERS OF FRESHWATER RIVER FENI OF TRIPURA, INDIA ON THE DENSITY OF Sperata Aor (HAMILTON, 1822): A STEP FOR SPECIES CONSERVATION”. UTTAR PRADESH JOURNAL OF ZOOLOGY, vol. 39, no. 3, Aug. 2019, pp. 133-6, https://www.mbimph.com/index.php/UPJOZ/article/view/1409.