G. Al-Heyaly, S., I. M. Alnahe, and Z. Yahya. “A Comparative Study in the Level of Emotional Arousal Among the Different Play Lines Players for Basket Ball”. Al-Rafidain Journal For Sport Sciences, vol. 13, no. 46, Feb. 2007, pp. 91-102, doi:10.33899/rajsport.2007.6000.