Yahayu, M. A., M. Rahmani, N. Mohd Hashim, G. Cheng Lian Ee, M. A. Sukari, and A. Md Akim. “CYTOTOXIC AND ANTIMICROBIAL XANTHONES FROM Cratoxylum Arborescens (Guttiferae)”. Malaysian Journal of Science, vol. 32, no. 1, June 2013, pp. 53-60, doi:10.22452/mjs.vol32no1.9.