NINA MARDIANA; SAPTINA RETNAWATI. The Impact of the Problem-Based Learning Model with Digital Student Worksheets on Student Learning Outcome at SMA PGRI Rumpin. International Journal of Economics Education Research (IJEER), [S. l.], v. 6, n. 2, p. 1–10, 2025. Disponível em: https://openjournal.unpam.ac.id/index.php/IJEER/article/view/53883. Acesso em: 14 jan. 2026.