Bondar Л. С. . THEORETICAL FUNDAMENTALS AND DIFFERENTIATED APPROACH TO CREATING FOR THE PRIMARY SCHOOL TEXTBOOKS IN THE UKRAINIAN SOVIET SOCIALIST REPUBLIC (40-80-S OF THE XX CENTURY). Problems of the modern textbook, [S. l.], n. 14, p. 67–77, 2014. Disponível em: https://ipvid.org.ua/index.php/psp/article/view/522. Acesso em: 19 may. 2024.