Shaman، S. N. H.، و Threfall، J. (2011). Study of Mathematics Anxiety Among Saudi Intermediate School Students in Najran Region of Saudi Arabia and its Relationship to Mathematics Performance (رسالة ماجستير غير منشورة). University of Leeds، ليدز. مسترجع من http://search.mandumah.com/Record/601739
Shaman، Saleh Nasser Hamad، و John Threfall. "Study of Mathematics Anxiety Among Saudi Intermediate School Students in Najran Region of Saudi Arabia and Its Relationship to Mathematics Performance" رسالة ماجستير. University of Leeds، ليدز، 2011. مسترجع من http://search.mandumah.com/Record/601739