ZEYBEK, Zulfiye. LEARNING TO UNDERSTAND INCLUSION RELATIONS OF QUADRILATERALS. The Eurasia Proceedings of Educational and Social Sciences, [S. l.], v. 6, p. 9–13, 2017. Disponível em: https://epess.net/index.php/epess/article/view/308. Acesso em: 7 sep. 2025.