Sihaloho, L. M. S.; Malinda, L.; Harahap, S. A. THE EFFECT OF PROBLEM BASED LEARNING (PBL) LEARNING MODEL ON CREATIVE THINKING ABILITY IN THEMATIC LEARNING OF GRADE V STUDENTS OF PRIVATE ELEMENTARY SCHOOL HKBP PAGAR JATI. REKOGNISI 2024, 9, 38-45.