Pratama, Uriansah, Abdul Hafiz Ardiansyah, and Femmy Schouten. “Kajian Tingkat Okupansi Kereta Api Penataran Relasi Sidoarjo-Malang”. Jurnal Penelitian Sekolah Tinggi Transportasi Darat 11, no. 2 (January 8, 2024): 1-11. Accessed July 4, 2026. http://114.141.51.86/index.php/jpsttd/article/view/550.