DOBRIYAL, A. K., and H. R. SINGH. 1981. “DIURNAL VARIATION IN SOME ASPECTS OF LIMNOLOGY OF THE RIVER MANDAKINI FROM THE GARHWAL HIMALAYA”. UTTAR PRADESH JOURNAL OF ZOOLOGY 1 (1 & 2), 16-18. https://www.mbimph.com/index.php/UPJOZ/article/view/946.