1. Ayten, E. R. (2015). An improvised example in traditional Turkish theatre: Ortaoyunu. International Journal of Social Sciences, 6, 115–134.
2. Barber, K., Collins, J., & Richard, A. (1997). West African popular theatre. Indiana University Press.
3. Barbuto, D. M. (1999). American settlement houses and progressive social reform: An encyclopedia of the American settlement movement. Greenwood.
4. Boyd, N. (n.d.). The theory of play. Viola Spolin. http://spolin.com/?page_id=1068.
5. Coleman, J. (1990). The compass: The improvisational theatre that revolutionized American comedy. University of Chicago Press.