Septi, S. U. H. and Muhammad Zajuli (2025) “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), 6(1), pp. 1–9. Available at: https://jurnal.stkippgribl.ac.id/index.php/jeta/article/view/1923 (Accessed: 13 October 2025).