Karakteristik dan Stabilitas Sediaan Gel Mulut Berbahan Aktif Ekstrak Daun Sirih Hitam Berbasis Hydroxy Ethyl Cellulose (HEC). Journal of Tropical Pharmacy and Chemistry , [S. l.], v. 2, n. 2, p. 83–90, 2013. Disponível em: https://jtpc.ff.unmul.ac.id/index.php/jtpc/article/view/64. Acesso em: 19 apr. 2025.