Research design
Research design : qualitative, quantitative, and mixed method approaches print
- 2nd ed.
- cau Sage Publications c2003
- xxvi, 246 p. : ill. 25 cm. xxvi, 246 p. : ill. ; 25 cm.
John W. Creswell.
0761924418 (c)
Research Methodology
Statistical methods
John W. Creswell.
0761924418 (c)
Research Methodology
Statistical methods