Kishta، M. A. (1975). Gognitive Development and Achievement in Mathematics and Science of The Freshmen Students At The Universtty of Jordan. دراسات - العلوم الإنسانية، مج2, ع2 ، 47 - 71. مسترجع من http://search.mandumah.com/Record/656992
Kishta، Mohammed A. "Gognitive Development and Achievement in Mathematics and Science of The Freshmen Students At The Universtty of Jordan." دراسات - العلوم الإنسانية مج2, ع2 (1975): 47 - 71. مسترجع من http://search.mandumah.com/Record/656992