Pande, P.K. et al. 2013. Secondary Xylem Anatomy of Root and Stem of <I>Alstonia scholais</I>, <I>Bischhiofia javanica</I> and <I>Trewia nudiflora</I>: The Characteristic Plant Species of Manu Fresh Water Swamp, Rishikesh, Dehradun (India). Indian Forester. 139, 8 (Aug. 2013), 726–730. DOI:https://doi.org/10.36808/if/2013/v139i8/35611.