L. F. Wulandari, L. Ameliana, and L. O. R. K. Sari, “Optimasi Xanthan Gum dan Hydroxypropyl Methylcellulose dalam Masker Gel Peel-Off Antioksidan Ekstrak Kulit Buah Kakao (Theobroma cacao L.): Optimization of Xanthan Gum and Hydroxypropyl Methylcellulose in Antioxidant Peel-Off Gel Mask from Cocoa Pod Husk Extract (Theobroma cacao L.)”, J. Sains Kes., vol. 5, no. 4, pp. 492–499, Aug. 2023.