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020 _a9789332549470
040 _aMAIN
041 _aEnglish
082 _a370.1
_bCRE
100 _aCreswell, John W.
245 _aEducational research
_b: planning, conducting, and evaluating quantitative and qualitative research
250 _a4th ed.
260 _aNew Delhi
_bPearson education
_c2016
300 _axx,650p.
650 _aEducation
650 _aEducational Research
942 _cBK
999 _c27018
_d27018