00614nam a22001217a 4500 MUK Mukhopadhayay, Parimal Theory and Methods of Survey Sampling New Delhi: PHI Learning, 2012. 563p. ; https://books.google.com.pk/books?id=Et5aizm6KYoC&pg=PA462&lpg=PA462&dq=theory+and+methods+of+survey+sampling+by+mukhopadhyay+pdf&source=bl&ots=yoVOLovTLn&sig=Ui37m9C0o3JLaQu1-F3wef6wutA&hl=en&sa=X&ved=0ahUKEwiuhJn_kr7PAhUCOBQKHa2NBQgQ6AEIPDAF#v=onepage&q=theory%20and%20methods%20of%20survey%20sampling%20by%20mukhopadhyay%20pdf&f=false BK 54223 54220