HILMI DEMİRKAYA. EFFECTS OF THE 4MAT SYSTEM OF INSTRUCTION ON ACHIEVEMENT TOWARD GEOGRAPHY OF NINTH GRADERS. International Journal of Eurasia Social Sciences , [S. l.], v. 8, n. 29, p. 955–968, 2017. Disponível em: https://rrpubs.com/index.php/ijoess/article/view/974. Acesso em: 17 may. 2025.