الخديري ع. س. ق. IDENTIFY THE AVAILABILITY OF THE (TIMSS) STANDARDS IN MATH TEXTBOOK OF THE EIGHTH-GRADE OF THE PRIMARY STUDENTS IN YEMEN. Electronic Journal of University of Aden for Humanity and Social Sciences, [S. l.], v. 1, n. 2, p. 135–154, 2020. Disponível em: https://ejua.net/index.php/EJUA-HS/article/view/29. Acesso em: 3 apr. 2025.