2020. THE EFFECT OF IMPLEMENTING PROBLEM-BASED LEARNING ON THE FIFTH GRADE STUDENTS’ HIGHER ORDER THINKING SKILLS ON HEAT AND TRANSFER THEME AT SDN KEPATIHAN 06 JEMBER. Primary: Jurnal Pendidikan Guru Sekolah Dasar. 9, 4 (Aug. 2020), 482–491. DOI:https://doi.org/10.33578/10.33578/jpfkip.v9i4.7959.