1. Jean, C. (1967) Real and Imaginary in Children’s Play. Editions du Scarabée.
2. (2006) UNESCO. https://www.uil.unesco.org/fr
3. Ellis Michael, J. (1973) Why People Play. Prentice-Hall.
4. Lewis, M. (1993) The Lexical Approach. Language Teaching Publications.
5. Pauline, K. (1979) Illustrious Children’s Gallery. https://gallica.bnf.fr/ark:/12148/bpt6k9669339m.r