000 00413nam a2200133Ia 4500
008 160316s2009 xxu||||| |||| 00| 0 eng d
020 _a9788132107484
100 _aCreswell, John W.
245 _aResearch design: qualitative, quantitative, and mixed methods approaches
_b/ Creswell, John W.
250 _a3rd.
260 _aNew Delhi
_bSage Publications
_c2009
300 _axxix,260p.
650 _aRESEARCH METHOD
999 _c73356
_d73356