References:

1. Singh, A. (2008). Essentials of physical education. Kalyani Publishers.

2. Kamlesh, M. L. (2006). Psychology in physical education and sport (3rd ed.). Metropolitan Book Co.

3. Mangal, S. K. (2009). Psychology of sports performance. Sports Publication.

4. Kandappan, K. (2004). Foundations of physical education. Friends Publications. 

E-resources:

1. https://www.who.int/health-topics/physical-activity