RASIKA D. BHALKE, and SUBODH C. PAL. “Pharmacognostic And Preliminary Phytochemical Investigations On Pterospermum Acerifolium Wood”. International Journal of Pharma and Bio Sciences, vol. 3, no. 1, Mar. 2012, pp. 356-62, https://ijpbs.net/index.php/journal/article/view/1194.