000 00293nam a2200121Ia 4500
005 20250516211856.0
008 250516s9999 xx 000 0 und d
041 _aeng
100 _aVerma, R.K.
245 _aResearch Methodology
260 _bCommenwealth Publications
_c1989
300 _a152 p.
999 _c74816
_d74816