000 00449nam a2200169Ia 4500
008 250428s9999 xx 000 0 und d
020 _a978-1-50638670-6
082 _a300.721 C923 2018
245 0 _aResearch design : qualitative, quantitative, and mixed methods approaches
245 0 _cCreswell, John W.
250 _a5th ed.
260 _bSAGE Publications Inc.,
260 _c2018
300 _a438 pages.
942 _2DDC
942 _cB
999 _c39979
_d39979