Kasyful Kurob, Agus Zainul Fitri, Khairul Anam. IMPLEMENTATION OF SCHOOL OPERATIONAL CURRICULUM: REVIEW OF DAS SEIN AND DAS SOLLEN AT AL-MUHAFIZHOH JUNIOR HIGH SCHOOL, BLITAR CITY. INCOILS [Internet]. 2024 Feb. 9 [cited 2025 Dec. 2];3(1). Available from: https://incoils.or.id/index.php/INCOILS/article/view/201