000 00310nam a2200121Ia 4500
005 20240713145243.0
008 240712s9999 xx 000 0 und d
041 _aeng
100 _aSingh, Krishan ku.
245 _aResearch methodology insacial sciences
260 _aDelhi
_b Vrinda pra.
_c2018
300 _a286
999 _c23593
_d23593