PANJAITAN, D. H. The Effect of Leadership Style and Work Motivation on Employee Performance at PT. Alpha Ems (Enterprise Management Solution) Medan Branch. Journal of Management Science (JMAS), [S. l.], v. 4, n. 1, p. 6–12, 2021. Disponível em: https://www.exsys.iocspublisher.org/index.php/JMAS/article/view/102. Acesso em: 1 may. 2026.