Levy, P. S. (2009). Solutions manual to accompany sampling of populations: Methods and applications (4th ed.). John wiley.
Trích dẫn kiểu ChicagoLevy, Paul S. Solutions Manual to Accompany Sampling of Populations: Methods and Applications. 4th ed. New Jersey: John wiley, 2009.
Trích dẫn MLALevy, Paul S. Solutions Manual to Accompany Sampling of Populations: Methods and Applications. 4th ed. John wiley, 2009.
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