Analysis of Hydroquinone Content in Whitening Cream Circulating in Gorontalo City Using Uv-Vis Spectrophotometry. JHTS [Internet]. 21 Maret 2022 [dikutip 3 April 2026];3(2):73-82. Tersedia pada: https://journals.ubmg.ac.id/index.php/JHTS/article/view/283