Designing and conducting mixed methods research by Creswell, John W

Business research methods by Bryman, Alan

Qualitative research methods for the social sciences by Berg, Bruce L.

Basics of social research qualitative and quantitative approaches by Neuman, W. Lawrence

Qualitative research for education an introduction to theories and methods by Bogdan, Robert, Biklen, Sari Knopp

Fundamental of research methodology and statistics by Singh, Yogesh Kumar

The principles of experimental research by Srinagesh, K.

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Travel survey methods quality and future directions

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Research methods planning, conducting and presenting research by Devlin, Ann Sloan 1948-

Doing case study research a practical guide for beginning researchers by Hancock, Dawson R., Algozzine, Robert