1. Smith, J. M. J., & Harwood, C. G. (2002). The transiency of goal involvement states within match-play: A case study of an elite player. Journal of Sports Sciences, 20(1), 71-72.
2. Chen TL, Mao HC, Lai CH, Li CY, Kuo CH. The effect of yoga exercise intervention on health related physical fitness. In school-age asthmatic children 2009; 56(2):42- 52.
3. Clair W. Famment ‘An introduction of tests of Agility’. Completed research in health. Physical education and recreation 1966; 2:44.
4. Neil, R., Bayston, P., Hanton, S., & Wilson, K. (2013a). The influence of stress and emotions on association football referees? decision-making. Sport & Exercise Psychology Review, 9, 22-41.
5. Clay CC et al. “The Metabolic Cost of Hatha Yoga”. Clay CC, Lloyd LK, Walker Jl, Sharp KR, Pankey RB. Texas State University-San Marcos, Texas 78333, USA. CC61 @txstate, 2005.
6. Miles, A. J., & Neil, R. (2013). The use of self-talk during elite cricket batting competition. Psychology of Sport and Exercise, 14(6), 874-881. doi: 10.1016/j.psychsport.2013.07.005
7. West J, Otte C, Geher K, Johnson J et al. Effects of Hatha yoga and African dance on perceived stress, affect, and salivary cortisol. Ann Behav Med 2004; 28:114–118.
8. Michalsen A, Grossman P, AcilA et al. Rapid stress reduction and anxiolysis among distressed women as a consequence of a three month intensive yoga program. Med SciMonit 2005; 11:555–561.
9. Gokal R, Shillito L. Positive impact of yoga and pranayama on obesity, hypertension, blood sugar, and cholesterol: A pilotassessment. J Altern Complement Med 2007; 13:1056–1057.
10. Selvamurthy W, Sridharan K, Ray US et al. A new physiological approach to control essential hypertension. Indian J PhysiolPharmacol 1998; 42:205–213.