AHMADU, A. A.; TARIMALEDEI, P.; A. ONANUGA, A. TRITERPENOIDS FROM GUTENBERGIA NIGRITANA(BENTH).OLIV AND HIERN. African Journal of Traditional, Complementary and Alternative Medicines, [S. l.], v. 10, n. 3, p. 405–409, 2013. Disponível em: https://journals.athmsi.org/index.php/ajtcam/article/view/1619. Acesso em: 17 may. 2024.