ZAHRA, Wardah Anis et al. Utilization of Betel Leaves (Piper betle L.) as an Active Ingredient in Glycerin Based Herbal Soap. Proceedings Series on Social Sciences & Humanities, [S. l.], v. 28, p. 171–175, 2025. Disponível em: https://conferenceproceedings.ump.ac.id/pssh/article/view/1872. Acesso em: 20 jan. 2026.