A. Hadi, A. Hamid, Mat ’ Ropi Mukhtar, Khoo ’ Choon Wee, and Saripah Salbiah Syed Abd. Azziz. 2008. “Alkaloids Isolated from Dehaasia Candolleana (Meisn.) Kosterm”. Malaysian Journal of Science 27 (2):115-21. https://juku.um.edu.my/index.php/MJS/article/view/9273.