1 | Yıldırım, A. ve Şimşek, H. (2005). Sosyal Bilimlerde Nitel Araştırma Yöntemleri. Ankara: Seçkin Yayınevi. |
2 | Creswell, J. W. (2003). Research Design: Qualitative, Quantitative and Mixed Methods Approaches. USA: Sage Publications. |
3 | Miles B. M. & Huberman, A. M. (1994). Qualitative Data Analysis: An Expanded Sourceook. (2nd Ed.). Thousand Oaks, California: Sage Publications. |
4 | Strauss, A. & Corbin, J. (1998). Basics of Qualitative Research: Grounded Theory Procedures and Techniques. Newbury Park, CA: Sage Publications. |