GÖZDE AKYÜZ. Investigation of The Effect of Teacher and Class Characteristics on Mathematics Achievement in Turkey and European Union Countries. Elementary Education Online, [S. l.], v. 5, n. 2, p. 75–86, 2023. Disponível em: https://ilkogretim-online.org./index.php/pub/article/view/522. Acesso em: 5 jul. 2024.