1.

図書
図書
1. Designing and conducting mixed methods research. 2nd ed
John W. Creswell, Vicki L. Plano Clark
出版情報: Thousand Oaks, Calif. : Sage Publications, c2011
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2.

図書
図書
2. Research design : qualitative, quantitative, and mixed methods approaches. 3rd ed
John W. Creswell
出版情報: Los Angeles : Sage Publications, c2009
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