S, Ibrahim, Syed Abdul Kadir S.A.I.A, Ismail N, and Ismail N.H. 2005. “Assessment of Antioxidant Activities of Kenaf Leaves (Hibiscus Cannabinus) Extracts”. Malaysian Journal of Science 24 (1):201-5. http://ojie.um.edu.my/index.php/MJS/article/view/8976.