NARAYAN VENKATACHALAM, R. .; SINGH, K. .; MARAR, T. . Phytochemical Screening and in vitro Antioxidant Activity of Psidium guajava. Free Radicals and Antioxidants, [S. l.], v. 2, n. 1, p. 31–36, 2020. DOI: 10.5530/ax.2012.2.7. Disponível em: https://antiox.org/index.php/fra/article/view/249. Acesso em: 28 nov. 2021.