Shah, J.J. and Setia, R.C. 1976. Histological and Histochemical Studies in Gum formation in <I>Pterocarpus marsupium</I> Roxb. Indian Forester. 102, 3 (Mar. 1976), 161–167. DOI:https://doi.org/10.36808/if/1976/v102i3/11873.