Syed Abd. Aziz, S. S., Mukhtar, M. R., A. Hadi, A. H., Abdullah, N. R., & Awang, K. (2009). Isoquinoline Alkaloids and Antimalarial Properties of Popowia Perakensis Extract. Journal of Science and Mathematics Letters, 1(2), 80–86. Retrieved from https://ejournal.upsi.edu.my/index.php/JSML/article/view/382