Salim, M. J., Firdaus, T. A., Hasan, C. C. C., & Pamungkas, Y. (2026). Depression Risk Classification Using Machine Learning: A Model Performance Study. Ultima InfoSys : Jurnal Ilmu Sistem Informasi, 17(1), 67–75. https://doi.org/10.31937/si.v17i1.4670