Nuraini, I. ., Iswandi, and Supriyadi. “Development and Validation of Analysis Methods for Retinoids, Arbutin, Nicotinamide in HPLC Cosmetics”. Jurnal Multidisiplin Madani, vol. 4, no. 7, July 2024, pp. 939-48, doi:10.55927/mudima.v4i7.10170.