YASIN, Y. .; AHMAD, F. . Lipase Catalyzed Betulinic Acid Derivatives and its Cytotoxic Activity. Scientific Research Journal, [S. l.], v. 7, n. 1, p. 65–76, 2010. DOI: 10.24191/srj.v7i1.9425. Disponível em: https://journal.uitm.edu.my/ojs/index.php/SRJ/article/view/3128. Acesso em: 4 oct. 2024.