RAJ DES. (1999). SAMPLE SURVEY THEORY. NAROSA PUBLISHING HOUSE.
Chicago-čujuhus (17. p.)RAJ DES. SAMPLE SURVEY THEORY. NEW DELHI: NAROSA PUBLISHING HOUSE, 1999.
MLA-čujuhus (9. p.)RAJ DES. SAMPLE SURVEY THEORY. NAROSA PUBLISHING HOUSE, 1999.
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