SIHALOHO, L. M. S. The Effect of Wage Amounts and Certification on Teacher Performance in HKBP Pagar Jati Private Elementary School Lubuk Pakam District. Journal of Management Science (JMAS), [S. l.], v. 1, n. 3, Juli, p. 82–86, 2018. Disponível em: https://exsys.iocspublisher.org/index.php/JMAS/article/view/15. Acesso em: 18 apr. 2026.