“The Transformation of PT Kereta Api Indonesia (KAI): Improve in Service, Human Resource, and Recruitment Systems from Past to Present: Transformasi PT. Kereta  Api  Indonesia (KAI) Peningkatan Layanan, SDM, Dan Sistem Rekrutmen Dari Dulu Hingga Sekarang”. Procedia of Social Sciences and Humanities, vol. 9, no. 1, Aug. 2026, pp. 619-24, https://doi.org/10.21070/pfx9e373.