Suhair Akram Ibrahim, Maher Abdel-Hamza; The effect of using different educational methods on the development of the performance level of the serve skill in badminton, Journal of Physical Education Sciences, College of Physical Education and Sports Sciences, University of Baghdad, Issue Three, Volume Two, 2009.
Ayed Karim Al-Kinani, Introduction to Statistics and SPSS Applications, Najaf, Dar Al-Diyaa for Printing and Publishing, 2009.
Sherine Saleh Abu Orabi and others, the effect of the Eisenkraft survey model on the achievement and development of historical thinking skills among tenth grade students in history, a research published in the Journal of Al-Quds Open University, Issue 40, 2016.
Mostafa Fahmy, the Psychology of Learning, Cairo, Dar Misr for Printing, 1984.
Aqel Fakher, Learning and Its Theories, 6th Edition, Beirut, Dar Al-Ilm for Millions, 1986.
Muntadhar Majeed, “The Effect of Using Tactical Approaches Exercises on Learning and Retention of Some Tennis Skills and Developing Game Performance, PhD thesis, University of Baghdad, College of Physical Education, 2006.
Wissam Riyad Hussain, The effect of assistive tools in alleviating the difficulties of motor performance and developing the most important aspects of the skills of crushing hitting and blocking students in volleyball, PhD thesis, University of Babylon - College of Physical Education, 2011.
Nahida Abd Zaid: The effect of overlapping exercise methods on learning the skills of spike serve and spiking, Ph.D. thesis, unpublished, University of Baghdad, College of Physical Education, 2002.