Arun Kumar Uppal, “Comparative Effect of Two Duration Load Methods and Interval Running Method on Cardio Respiratory Endurance and Selected Physiological Variables”, (Unpublished Doctorial Dissertation, Jiwaji University, Gwalior, 1980).
Atindera Barik, A.K. Banerjee, “Effect of 6 week conditioning Program on some performance variables between tribal and not tribal students”, NIS Scientific Journal Vol. 17., No. 2, 1994. Ben Miller, Karl, book Walker and George E. Schlatur (1970) “How to organize and conduct of football practices” The importance of planning. Pp. 1-15