Hutabarat, R. M., & Hutabarat, F. M. (2013). The Effect of Rewards Towards Employees Motivation at Anjasmoro Adventist Academy. Jurnal Koinonia: Fakultas Filsafat Universitas Advent Indonesia, 5(1), 71-82. https://doi.org/10.35974/koinonia.v5i1.163