et al., M. A. S. K. “EFFECTS OF YOGIC PRACTICE AND CALISTHENICS EXERCISEON SELECTED SPEED AND AGILITY VARIABLES OF INTER COLLEGIATE FOOTBALL PLAYERS”. International Journal of Advanced Science and Technology, Vol. 28, no. 16, Nov. 2019, pp. 1274 -81, https://sersc.org/journals/index.php/IJAST/article/view/2085.