“Formulation and Evaluation of Hydrogel from Agarwood Leaf (Aquilaria Malacensis Lamk.) Ethanol Extract With Carbopol 940 and HPMC K4M Combination: Formulasi Dan Evaluasi Hidrogel Ekstrak Etanol Daun Gaharu (Aquilaria Malacensis Lamk.) Dengan Kombinasi Basis Karbopol 940 Dan HPMC K4M”. Journal Pharmasci (Journal of Pharmacy and Science) 6, no. 1 (January 20, 2021): 37–46. Accessed November 2, 2026. http://ejournal.akfarsurabaya.ac.id/index.php/jps/article/view/208.