Md. Enamul Haque*, Zimam Mahmud, A. K. M. Mahbub Hasan, Roman Sardar, Md. Lutful Kabir and Sheikh Tanzina Haque. 1. “Betulin-3-Caffeate and Amyrin from the Stem Bark of Barringtonia Acutangula (L)”. Bioresearch Communications-(BRC) 1 (2). Dhaka, Bangladesh:121-23. http://bioresearchcommunications.com/index.php/brc/article/view/57.