Madar Zuabi ES. Relationship Of School Operational Assistance And Teaching Supervision Implementation With The Performance Teachers In Madrasah Ibtidaiyah Simalungun District . IJESSM [Internet]. 2021 Sep. 15 [cited 2025 Aug. 19];1(3):1-14. Available from: https://lpppipublishing.com/index.php/ijessm/article/view/42