1. Multiple Representations in 8th Grade Mathematics Textbook and the Extent to Which Teachers Implement Them;M Alkhateeb;International Electronic Journal of Mathematics Education,2019
2. Gestures as semiotic resources in the mathematics classroom;F Arzarello;Educational Studies in Mathematics,2009
3. The influence of L. S. Vygotsky on education theory, research, and practice;V Davydov;Educational Researcher,1995
4. Language as social semiotic;M A K Halliday;The Discourse Studies Reader. Amsterdam: John Benjamins,2014
5. The interplay of text, symbols, and graphics in mathematics education;L Hammill;Transformative dialogues: teaching & learning Journal,2010