MANURUNG, L.; ETTY HARYA NINGSI. The Effect of Rewards, Incentives and Welfare Allowances on Employee Morale at PT. PNM (Independent National Capital) Binjai. Jurnal Mantik, [S. l.], v. 5, n. 3, p. 1989-1997, 2021. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/1827. Acesso em: 2 may. 2026.