SIOW PING, T.; NAFIAH, M. A.; YEAN SHAN, L.; AWANG, K.; AHMAD, K. Isolation of Stigmasterol from the Bark of Kopsia singapurensis Ridl. Journal of Science and Mathematics Letters, [S. l.], v. 5, n. 1, p. 28–34, 2013. Disponível em: https://ejournal.upsi.edu.my/index.php/JSML/article/view/351. Acesso em: 23 apr. 2024.