BALDWIN , A. Analysis of the chemical components of the essential oil fraction of betel leaf (piper bettle linn.) and the antibacterial activity test against several types of gram-positive bacteria. International Journal of Nursing and Midwifery Research, [S. l.], v. 1, n. 1, p. 9–18, 2022. Disponível em: https://journals.iarn.or.id/index.php/ners/article/view/30. Acesso em: 19 apr. 2026.