Open Science Research Excellence
Belma Turker and  Cigdem Alkas and  Ebru Aylar and  Ramazan Gurel and  Oylum Akkus Ispir,  The Views of Elementary Mathematics Education Preservice Teachers on Proving.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology. July 2010, vol. 43(7). 1558 - 1562[viewed 20 July 2019]. Available from: http://waset.org/publications/11751.