DEA APRILLIA SIMAMORA; BARHAM SIREGAR; NURUL DALIMUNTE. Employee Training Efforts and Incentive Provision Towards Improving Employee Performance Through Customer Service at Kembar Ponsel Medan. Jurnal Dialektika: Jurnal Ilmu Sosial, [S. l.], v. 23, n. 3, p. 309–326, 2025. DOI: 10.63309/dialektika.v23i3.839. Disponível em: https://jurnaldialektika.com/index.php/piani/article/view/839. Acesso em: 20 apr. 2026.