1. Schiller, F.: On the Aesthetic Education of Man/Translated with an introduction by Reginald Snell. 160 p. Dover Publications Inc., Mineola, New York (2004)
2. Gross K.: The mental life of a child. 121 p. Publishing house of the Kyiv Froebel Association., Kyiv (1916)
3. Elkonin, D. B.: Game Psychology. 226 p. (1978). https://dytpsyholog.files.wordpress.com/2015/01/elkonin-psihologiya-igry.pdf. Accessed 25 May 2023
4. Honcharenko, S. U.: Ukrainian Pedagogical Dictionary. 376 p. Lybid, Kyiv (1997)
5. Smirnova, O. O.: Children's psychology. 366 p. (2008). https://s.siteapi.org/ecda36889c281a6/docs/a010c6a810006b8460fada4576b2a30c9c55217f.pdf, Accessed 25 May 2023