TY  - BOOK
AU  - Mukhopadhayay, Parimal
TI  - Theory and Methods of Survey Sampling
U1  - MUK 
PY  - 2012///
CY  - New Delhi
PB  - PHI Learning
UR  - 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
ER  -