Preparation And Evaluation Of Hydrogel From Super Red Dragon Fruit Skin Extract (Selenicereus costaricensis). JPK : Jurnal Proteksi Kesehatan, [S. l.], v. 13, n. 2, p. 185–192, 2025. DOI: 10.36929/jpk.v13i2.947. Disponível em: https://jurnal.pkr.ac.id/index.php/JPK/article/view/947. Acesso em: 27 jul. 2026.