Iswanto, Ary Putra, and Willy Artha Wirawan. “Community Characteristics in the Use of the Madiun-Surabaya Railway and Bus Transportation Mode”. Jurnal Perkeretaapian Indonesia (Indonesian Railway Journal) 4, no. 1 (March 14, 2020). Accessed June 4, 2026. https://jurnal.ppi.ac.id/jpi/article/view/108.