LUMBANTORUAN, P. L.; PANJAITAN, M.; RAJAGUKGUK, T. The effect of training, work motivation, and employee engagement on employee work productivity at the Population and Civil Registration Office, Humbang Hasundutan. Jurnal Bisnis Mahasiswa, [S. l.], v. 5, n. 5, p. 2266–2278, 2025. DOI: 10.60036/jbm.706. Disponível em: https://jurnalbisnismahasiswa.com/index.php/jurnal/article/view/706. Acesso em: 21 apr. 2026.