Madar Zuabi, Edi Saputra,. 2021. “Relationship Of School Operational Assistance And Teaching Supervision Implementation With The Performance Teachers In Madrasah Ibtidaiyah Simalungun District”. International Journal Of Education, Social Studies, And Management (IJESSM) 1 (3):1-14. https://doi.org/10.52121/ijessm.v1i2.42.