EKA VIRDIYANTI, FEZYLIA, and BUDI JATMIKO. 2020. “LEARNING PHYSICS PBL MODEL USING CONTEXTUAL APPROACHES TO IMPROVE STUDENT HIGHER ORDER THINKING SKILLS (HOTs)”. IPF: Inovasi Pendidikan Fisika 9 (2). https://ejournal.unesa.ac.id/index.php/inovasi-pendidikan-fisika/article/view/34079.