Bakker, F.C.
Sport psychology : concepts and applications
John Wiley & Sons, 1990
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Cox, Richard H.
Sport psychology : a concepts and applications
McGraw-Hill, 2007
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Lavallee, David
Key studies in sport and exercise psychology
McGraw-Hill, Higher Education, 2008
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Vernon, Mark
Bisnis: the key concepts = Business: the key concepts
RajaGrafindo Persada, 2011
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Key concepts in geography
edited by Sarah L. Holloway, Stephen P. Rice, Gill Valentine
Sage, 2003
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