000 00284nam a2200121Ia 4500
005 20250516211808.0
008 250516s9999 xx 000 0 und d
041 _aeng
100 _aVerma, R. K.
245 _aResearchmethodology
260 _bCommonwealth Pub
_c1989
300 _a197 p.
999 _c74440
_d74440