Pravita Anggraeni, Rachmah and Noorlaela, Ella and Andini, Septia (2019) FORMULATION HYDROGEL FACE MASK CONTAINING CHICKEN EGGSHELL WITH DIFFERENCE CONCENTRAION OF SODIUM ALGINATE Rachmah Pravita Anggraeni1*), Ella Noorlaela1, Septia Andini2. Skripsi thesis, Universitas Pakuan.