Zulkarnain, Abdul Karim, Jumina Jumina, Galih Titiasari Kharismawati, and Fina Anjani Larasati. “Optimization of Gelling Agent and Sunscreen Activity Test of 4-OH-Chalcone Gel by In Vitro Method”. Indonesian Journal of Pharmacy 34, no. 1 (January 11, 2023): 112-119. Accessed November 23, 2024. https://dev.journal.ugm.ac.id/v3/IJP/article/view/3300.