“High Performance Liquid Chromatography Method for Analysis of Alpha Arbutin and Niacinamide in Facial Whitening Creams: Metode Kromatografi Cair Kinerja Tinggi Untuk Analisis Kandungan Alfa Arbutin Dan Niasinamid Dalam Krim Pemutih Wajah”. Journal Pharmasci (Journal of Pharmacy and Science) 9, no. 1 (July 22, 2024): 41–48. Accessed October 26, 2025. https://ejournal.akfarsurabaya.ac.id/index.php/jps/article/view/374.