Singh, D., & Chaudhary, F. (1986). Theory and analysis of sample survey designs. New age International.
शिकागो स्टाइल उद्धरणSingh, Daroga, और F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New Delhi: New age International, 1986.
एमएलए उद्धरणSingh, Daroga, और F.S Chaudhary. Theory and Analysis of Sample Survey Designs. New age International, 1986.
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