“Formulasi dan Uji Karakteristik Fisik Sediaan Hidrogel Acne Patch Nanopropolis (Trigona sp.) Asal Balikpapan”. Journal of Pharmaceutical and Sciences, vol. 9, no. 3, September 2026, hlm. 3073-81, https://doi.org/10.36490/journal-jps.com.v9i3.1759.