Qorry, A.Y., Suroso, A.I. and Taryana, A. 2026. Strategic Business Diversification and Competitive Positioning in Railway Infrastructure Maintenance. Jurnal Ilmiah Manajemen Kesatuan. 14, 1 (Jan. 2026), 677–694. DOI:https://doi.org/10.37641/jimkes.v14i1.4642.