Sage handbook of mixed methods in social & behavioral research
Abbas Tashakkori, Charles Teddlie
SAGE Publications, 2010
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The SAGE handbook of online research methods
edited by Nigel G. Fielding; Raymond M. Lee; Grant Blank
SAGE Reference, 2017
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The SAGE Encyclopedia of social science research methods
Sage Publications, 2007
 eBooks
The Sage handbook of qualitative research
edited by Norman K. Denzin, Yvonna S. Lincoln
Sage, 2011
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The Sage handbook of qualitative research
edited by Norman K. Denzin and Yvonna S. Lincoln
Sage , 2011
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