McDowell, Ian
Measuring health: a guide to rating scales and questionnaires / Ian McDowell and Claire Newell
Oxford University Press, 1996
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Gallup, George
A Guide To Public Opinion Polls
Princeton University press, 1948
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Kofler, Michael
The definitive guide to MySQL
Apress, 2004
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White, Tom
Hadoop: the definitive guide
O'Reilly Media , 2015
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Baskind, Eric
Mooting : the definitive guide
Routledge, 2017
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