Qorry, Akhmad Yani, Arif Imam Suroso, and Asep Taryana. “Strategic Business Diversification and Competitive Positioning in Railway Infrastructure Maintenance”. Jurnal Ilmiah Manajemen Kesatuan 14, no. 1 (January 31, 2026): 677–694. Accessed June 4, 2026. https://jurnal.ibik.ac.id/index.php/jimkes/article/view/4642.