Preparation And Evaluation Of Hydrogel From Super Red Dragon Fruit Skin Extract (Selenicereus costaricensis) - Setiawan, Dwi; Yesti, Yulia; Rahmadasmi, Nola; Fitriani, Oryza; Andika, Miming; Hasanah, Rizqa; .AH, Ahdi; Wulandari, Desti; Putri, Nurdina (JPK : Jurnal Proteksi Kesehatan, 2025)