O`Grady, William
How children learn language
Cambridge University Press, 2007
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Kidd
How adults learn / Kidd
Cambridge University Press, 1973
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Kellett, Mary
How to develop children as researchers: a step-by-step guide to teaching the research process
Paul Chapman Publishing, 2005
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Blaxter, Loraine
How to research
Open University Press , 1996
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Bode, Boyd Henry
How we learn / Boyd Henry Bode.
D.C Heath and Company, 1940
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