Rozana, ., S. Mazdida, U. Shasya, K. Awang, and A. Hamid A. Hadi. “Chemical Constituents of Three Malaysian Ancnonaceae”. Malaysian Journal of Science, vol. 18, no. 1, Apr. 1999, pp. 35-40, https://ejournal.um.edu.my/index.php/MJS/article/view/9382.