Penyerapan Tenaga Kerja Jasa Keamanan di Wilayah Operasional PT. Vale Indonesia. Center of Economic Students Journal, [S. l.], v. 5, n. 4, p. 363–374, 2022. DOI: 10.56750/csej.v5i4.554. Disponível em: https://jurnal.fe.umi.ac.id/index.php/CSEJ/article/view/554. Acesso em: 8 oct. 2025.