O. C. . Obidiegwu, C. C. . Abba, K. U. . Ajah, N. T. . Ujam, and F. B. C. . Okoye, “Biologically active secondary metabolites of an endophytic fungus of Psidium guajava”, GSC Biol. Pharm. Sci., vol. 18, no. 1, pp. 111–117, Apr. 2022.