“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 9, no. 1 (August 31, 2026): 619–624. Accessed September 4, 2026. https://pssh.umsida.ac.id/index.php/pssh/article/view/1112.