1. Åstrand, P.-O., Rodahl, K. 1986. Textbook of Work Physiology. McGraw-Hill Book company, Third Edition, New York.
2. Introduction to Physiology;Davson,1975
3. Body fat assessed from total body density and it's estimation from skinfold thickness;Durnin;British J. Nutr.,1974
4. A formula to estimate the approximate surface area if height and weight be known;DuBois;Arch. Internal Med.,1919
5. Færevik, H., Reinertsen, R.E., 1998. Thermal stress in helicopter pilots, evaluation of two survival suits used during flight. In: Hodgon, J.A., Heaney, J.H., Buono, J.B. (Eds.), Environmental Ergonomics, Vol. 8, California, USA, pp. 173–176.