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De Vaus, D. A. (2014b). Surveys in Social Research (6th ed). Routledge. http://ezproxy.lib.le.ac.uk/login?url=http://lib.myilibrary.com?id=553067
De Vaus, D. A. (2014c). Surveys in Social Research (6th ed). Routledge. http://ezproxy.lib.le.ac.uk/login?url=http://lib.myilibrary.com?id=553067
De Vaus, D. A. (2014d). Surveys in Social Research (6th ed). Routledge. http://ezproxy.lib.le.ac.uk/login?url=http://lib.myilibrary.com?id=553067
De Vaus, D. A. (2014e). Surveys in Social Research (6th ed). Routledge. http://ezproxy.lib.le.ac.uk/login?url=http://lib.myilibrary.com?id=553067
Diamantopoulos, A., & Schlegelmilch, B. B. (1997). Taking the fear out of data analysis: a step-by-step approach. Dryden Press.
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Hair, J. F., Black, W. C., Babin, B. J., & Anderson, R. E. (2014). Multivariate data analysis: Vol. Pearson custom library (Pearson new international seventh edition). Pearson. http://ezproxy.lib.le.ac.uk/login?url=http://lib.myilibrary.com?id=527034
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