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), 152-160. https://doi.org/10.15408/pbsj.v7i2.45975