“Physical Stability Test and Total Phenolic Content Determination of Spray Gel Formulation with Ethanol 70% Melinjo Leaf (Gnetum gnemon L.) Extract with Combination of Carbopol 940 and HPMC as Gelling Agent” (2025) Pharmaceutical and Biomedical Sciences Journal (PBSJ), 7(2), pp. 152–160. doi:10.15408/pbsj.v7i2.45975.