SEPTI, S. U. H.; MUHAMMAD ZAJULI. INCREASING STUDENTS’ ENGAGEMENT AND ACADEMIC ACHIEVEMENT THROUGH THE INTEGRATION OF PROBLEM-BASED LEARNING AND DIFFERENTIATED INSTRUCTION MODELS AT SMA NEGERI 6 KABUPATEN LAMPUNG TIMUR. JETA (Journal of English Teaching and Applied Linguistic), [S. l.], v. 6, n. 1, p. 1–9, 2025. Disponível em: https://jurnal.stkippgribl.ac.id/index.php/jeta/article/view/1923. Acesso em: 13 oct. 2025.