1. Andersen, K.L., Masironi, R., Rutenfranz, J. and Seliger, V. 1978. Habitual Physical Activity and Health. World Health Organization, Copenhagen.
2. Choudhury, M.R. 1978. The Tea Industry in India: A Diagnostic Analysis of its Geoeconomic Studies. Oxford Book and Stationary Company, Calcutta.
3. Dallosso, H.M., Murgatroyd, P.R. and James, W.P.T. 1982. Feeding frequency and energy balance in adult males. Human Nutrition: Clinical Nutrition 36: 25–39
4. Das, A.K. and Raha, M.K. 1963. The Oraons of Sunderban. Bulletin of the Cultural Research Institute, Calcutta. Government of West Bengal.
5. Edholm, O.G., Adam, J.M., Jealy M.J.R., Wolf, H.S., Goldsmith, R. and Best, T.W. 1970. Food intake and energy expenditure of Army recruits. British Journal of Nutrition, 24: 1091–1107.