Chuah, C. H. ’, C.L. Eel, G. and Goh, S. (1999) “Ouregidione from Goniothalamus velutinus (Annonaccae)”, Malaysian Journal of Science, 18(1), pp. 59–62. Available at: https://samudera.um.edu.my/index.php/MJS/article/view/9390 (Accessed: 20 November 2024).