Zulkarnain AK, Jumina J, Kharismawati GT, Larasati FA. Optimization of Gelling Agent and Sunscreen Activity Test of 4-OH-chalcone Gel by In Vitro Method. Indonesian J Pharm [Internet]. 2023Jan.11 [cited 2024Nov.22];34(1):112-9. Available from: https://jurnal.ugm.ac.id/v3/IJP/article/view/3300