Yang, Chin S.
Sampling and analysis of indoor microorganisms
Wiley-Interscience, 2007
 Buku Teks
Levy, Paul S.
Sampling of populations : methods and applications
John Wiley & Sons, 1999
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Chaudhuri, Arijit
Survey sampling: theory and methods
Chapman and Hall/CRC, 2005
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Soil sampling and methods of analysis
edited by M.R. Carter and E.G. Gregorich
Taylor &​ Francis , 2008
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Yates, Frank
Sampling methods for censuses and surveys
Maxmillan, 1981
 Buku Teks SO