Syahputra, M. R., M. I. Mazdadi, I. Budiman, A. Farmadi, S. W. Saputro, H. A. A. Rozaq, and D. Sutaji. “Accurate Skin Tone Classification for Foundation Shade Matching Using GLCM Features-K-Nearest Neighbor Algorithm”. Jurnal Teknik Informatika (Jutif), vol. 6, no. 5, Oct. 2025, pp. 3558-71, doi:10.52436/1.jutif.2025.6.5.4723.