Ali, Waleed, and Ammar Sharrif. “Effect of Both Peer Tutoring Style and the Triple Reciprocal Style in Acquisition of Technique for Some Tennis Basic Skills”. Al-Rafidain Journal For Sport Sciences 18, no. 59 (December 1, 2012): 143–158. Accessed October 2, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50871.