Iwan Dira Surjana; Ela Oktadiana; Abdul Shomad. RELATIONSHIP BETWEEN THE APPLICATION OF THE LEARNING MODEL PROBLEM BASED LEARNING WITH ACTIVITY STUDENT DISCUSSION IN LEARNING HISTORY IN CLASS VIIISEMESTER ODD STATE SMP I KABAT SCHOOL YEAR 2014/2015. Proceeding_in_Humanities 2022, 2, 2020-12.