Sarhan1, M.D. Jinan, AND 		Mahmoud2, M.D. Nurgan.
" The impact of the RISK training program in the development of thinking thinking skills among middle school students" <em>Journal of Tikrit university for humanities - مجلة جامعة تكريت للعلوم الانسانية</em> [Online], Volume 23 Number 8 (16 April 2019)