1. Ali Turki Musleh and Ahmad Yousef Al-Shamkhi. (2002). Designing a Test for Corrective Correction, Al-Qadisiyah Journal of Physical Education Sciences, M1, P5, Al-Qadisiyah University, p. 12.
2. Hussein, G. L., Hasan, A. J., & Al-Jadaan, D. A. N. (2022). The effect of the SWOM strategy on learning some artistic gymnastics skills for students. ResearchJet Journal of Analysis and Inventions, 3(04), 108-123.
3. Harman,E. (1994). Biomechanical Factors in Human strength, National strength and Conditioning Association journal,February,1994, p 46.
4. Hussein Mardan Omar and Iyad Abd Rahman. (2011). Biomechanics in Sports Movements. First Edition, Al-Najaf Al-Ashraf Press, p. 87
5. Wadih Yassin Muhammad and Hassan Muhammad Abd. (1999). Statistical Applications and Computer Uses in Physical Education Research, Dar Al-Kutub for Printing and Publishing, Mosul , p. 161.