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

Qualitative research design : an interactive approach / Maxwell, Joseph Alex, 1941-

Case study research : design and methods / Yin, Robert K.

Research design in clinical psychology / Kazdin, Alan E.

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

Research design in social research / De Vaus, D. A.

Case study research : design and methods / Yin, Robert K.

Need for research development in Design Design education Forum

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