SUSILO, A. S. .; SARININGRUM , C. Strategi Pengembangan Pegawai Purchasing PT. Keysa Sejahtera Jaya Dalam Menghadapi Era Revolusi Industri 4.0. Jurnal Relevansi : Ekonomi, Manajemen dan Bisnis, [S. l.], v. 4, n. 2, p. 58–70, 2020. DOI: 10.61401/relevansi.v4i2.46. Disponível em: https://jurnal.stiekrakatau.ac.id/index.php/relevansi/article/view/46. Acesso em: 8 apr. 2026.