Contributions of qualitative research to the validity of intervention research

Basics of Qualitative Research: Grounded Theory Procedures and Techniques.

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Basics of Qualitative Research: Grounded Theory Procedures and Techniques

Donna Reseigh Long, Anselm Strauss, Juliet Corbin · Modern Language Journal · 1993 · 17.7K citations

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The SAGE handbook of qualitative research

Choice Reviews Online · 2005 · 10.2K citations

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Social Research Methods: Qualitative and Quantitative Approaches

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The Sage handbook of qualitative research, 3rd ed.

Norman K. Denzin, Yvonna S. Lincoln · 2005 · 2.7K citations

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