Chairun Nisa, Prihatin Lumbanraja, and R Hamdani Harahap. 2022. “Effect of Incentives and Job Satisfaction on Performance Employees Through The Spirit of Work at Badan Lingkungan Hidup Sumatera Utara”. International Journal Of Humanities Education and Social Sciences (IJHESS) 2 (3). https://doi.org/10.55227/ijhess.v2i3.315.