PENINGKATAN KINERJA PEGAWAI PADA PT. KERETA API INDONESIA (PERSERO) DAERAH OPERASI 4 SEMARANG MELALUI LINGKUNGAN KERJA, MOTIVASI KERJA, DAN DISIPLIN KERJA. Indo-Fintech Intellectuals: Journal of Economics and Business, [S. l.], v. 5, n. 2, p. 5346–5361, 2025. DOI: 10.54373/ifijeb.v5i2.3344. Disponível em: https://ejournal.indo-intellectual.id/index.php/ifi/article/view/3344. Acesso em: 12 aug. 2026.