000 00259nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSingh, Yogesh Kumar
245 0 _aResearch Methodology
260 _aNew Delhi
_bAPH
_c2009
300 _a266p.
942 _cBK
999 _c13728
_d13728