F. N. Aziza, T. N. S. Sulaiman, F. S. Primasari, Z. Syazwina, and W. P. Suwardjo, “Optimization of HPMC and Carbopol 940 as Gelling Agents on The Physical Properties and Stability in Anti-Acne Gel of Binahong Leaves (Anredera cordifolia (Ten.) Steenis Extract”, Indonesian J Pharm, vol. 36, no. 3, pp. 479–488, Sep. 2025.