1. Adler JB 2001. Teaching Mathematics in Multilingual Classrooms. Volume 26. New York: Springer.
2. Artigue M, Assude T, Grugeon B, Lenfant A 2001. Teaching and Learning Algebra: Approaching Complexity Through Complementary Perspectives. The Future of the Teaching and Learning of Algebra, Proceedings of 12ndICMI Study Conference, The University of Melbourne, Australia, pp. 21-32.
3. Bournot-Trites M, Tellowitz U 2002. Report of Current Research on the Effectsof Second Language LEarning on First Language Literacy Skills. Hallifak NS: Printing House.
4. Brock-Utne B 2007. Language of instruction and Student performance: New insights from research in Tanzania and South Africa. International Review of Education, 53(5-6): 509–530.
5. Chitera N 2011. Language of learning and teaching in schools: an issue for research in mathematics teacher education?Journa/of Mathematics Teacher Education,14(3): 231-246.