A concise introduction to mixed methods research / Creswell, John W., author.

Social research methods : qualitative, quantitative and mixed methods approaches / Grønmo, Sigmund

Research design : qualitative, quantitative, and mixed methods approaches / Creswell, John W

First steps in research / Maree, J. G. (Jacobus Gideon)

Educational research : quantitative, qualitative, and mixed approaches / Johnson, R. Burke, author.

Research methods for economics / Mishi, Syden, editor.

Business research methods / Bell, Emma, 1968- author.

Research methods : the basics / Walliman, Nicholas, author.

Research methods and evidence-based practice / Liamputtong, Pranee, 1955-, editor.

Educational research : planning, conducting and evaluating quantitative and qualitative research /

Practical research : planning and design / Leedy, Paul D., author.