Ghildiyal, J. C., and M. M. Srivastava. “Root Diversity in Characteristic Plant Species of Manu Swamp : A Sub-Tropical Fresh-Water Swamp at Rishikesh (Dehra Dun)”. Indian Forester, vol. 133, no. 11, Nov. 2007, pp. 1526-34, doi:10.36808/if/2007/v133i11/1506.