Xistouri, X., Pitta - Pantazi, D., & Gagatsis, A. (2014). PRIMARY SCHOOL STUDENTS’ STRUCTURE AND LEVELS OF ABILITIES IN TRANSFORMATIONAL GEOMETRY. Revista Latinoamericana de Investigación en Matemática Educativa, 17(4(I), 149-164. https://www.relime.org/index.php/relime/article/view/191