References on non verbal communication
1. Burgoon, J. K., & Hoobler, G. D. (2002). Nonverbal signals. In The handbook of communication and social interaction skills (pp. 241-298). Psychology Press.
2. Ekman, P., & Friesen, W. V. (1969). The repertoire of nonverbal behavior: Categories, origins, usage, and coding. Semiotica, 1(1), 49-98.
3. Givens, D. B. (2001). Love Signals: A Practical Field Guide to the Body Language of Courtship. Crown Archetype.
4. Hall, E. T. (1973). The silent language. Doubleday.
5. Knapp, M. L., & Hall, J. A. (2014). Nonverbal communication in human interaction. Cengage Learning.
6. Mehrabian, A. (1971). Silent messages: Implicit communication of emotions and attitudes. Wadsworth Pub Co.
7. Pease, A., & Pease, B. (2006). The definitive book of body language. Hachette UK.
8. Hall, E. T., & Trager, G. L. (1953). The analysis of culture in complex societies. American Anthropologist, 55(4), 487-503.
9. Giuliano, T. A. (2011). Nonverbal communication behaviors in interpersonal relations. New York: Springer Publishing Company.
10. Patterson, M. L. (1991). Nonverbal behavior: A functional perspective. Springer Science & Business Media.