000 00521nam a2200157Ia 4500
008 181114s9999||||xx |||||||||||||| ||und||
020 _a9781412965569
082 _a300.72
_bC865
100 _aCreswell,John W.
245 0 _aResearch design :
_bQualitative,quantitative and mixed methods approach
_c/ Creswell,John W.
250 _a3rd ed.
260 _bSage Publications
_aLondon
_c2009
300 _a260 p
505 _g1.Preliminary considerations 2.Designing research
650 _aEducation-Research
999 _c14710
_d14710