1. Spencer, Herbert (1864). Principles of Biology, Volume 1 (https://books.google.com/books?id=SRkRAAA AYAAJ&pg=444) . Williams and Norgate. p. 444. "But this survival of the fittest, implies multiplication of the fittest."
2. Abels Karen & Bridges. Jennifer M. Teaching Movement Education , Human Kinetics, https://us.humankinetics.com/blogs/excerpt/what-are-the-origins-of-movement- education#:~:text=The% 20early%20pioneers%20of%20movement%20education%20were%20influenced,Francois%20Delsarte%2C%20Liselott%20Diem%2C%20and%20Rudolf%20von%20Laban.
3. Lento Cliff , https://www.scribd.com/presentation/544350731/CONCEPTS-OF-MOVEMENt
4. Simpson E.J. (1972). The Classification of Educational Objectives in the Psychomotor Domain. Washington, DC: Gryphon House.
5. Movement Concepts, 2018,ww.intrainer-buddy.com/movement-concepts/