Firdaus, M., A. Suriansyah, and W. Refia Rafianti. “LITERATURE REVIEW: THE EFFECTIVENESS OF THE PROBLEM-BASED LEARNING MODEL WITH A DIFFERENTIATED APPROACH IN IMPROVING THE LEARNING OUTCOMES OF ELEMENTARY SCHOOL STUDENTS”. Journal of Higher Education and Academic Advancement, vol. 1, no. 12, Dec. 2024, pp. 12-24, doi:10.61796/ejheaa.v1i12.1092.