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2- B.N. Ghosh: “A Treatise on hysiene and public health”, Published by Sree Nand
Lal Gosh, 85, Netajee Subosh Road, Culcutta, (Fifth edition) 1970.P.330 3- K.A. Hasan. “The cultural frontier of
health in village India”, Manaktalas, Bombay, 1967 P.74.
4- K.A. Hasan “The cultural frontier of Health in villege India”, Manaktalas, Bombay, 1967.P.77