ESIMONE, C.; OKOYE, F.; NWORU, C.; AGUBATA, C. <i>In vitro</i> interaction between caffeine and some penicillin antibiotics against <i>Staphylococcus aureus</i>. Tropical Journal of Pharmaceutical Research, [S. l.], v. 7, n. 2, p. 969–974, 2008. DOI: 10.4314/tjpr.v7i2.14675. Disponível em: https://www.ajol.info/index.php/tjpr/article/view/14675. Acesso em: 27 oct. 2026.