In Vitro Evaluation of Antimicrobial Activity of Psidium guajava Leaf Extract against Selected Pathogenic Bacteria. Journal of Pharmaceutical Negative Results, [S. l.], p. 1840–1844, 2022. DOI: 10.47750/pnr.2022.13.S06.242. Disponível em: https://mail.pnrjournal.com/index.php/home/article/view/2065.. Acesso em: 15 oct. 2025.