Purwanto, Ungsari Rizki Eka, and Intan Martha Cahyani. “Optimasi Dan Analisa Kandungan Antosinanin Total Dalam Formula Masker Gel Peel Off Ekstrak Etanol Bunga Rosela (Hibicus Sabdariffa L.)”. REPOSITORY STIFAR00 (May 3, 2018). Accessed July 25, 2026. https://repository.stifar.ac.id/Repository/article/view/65.