000			00326nam a2200133Ia 4500
005			20240713151036.0
008			240712s9999 xx 000 0 und d
041			_aeng
100			_aChawla, d.
245			_aResearch methodology; concepts & cases
250			_a2nd
260			_aNoida _b Vikas pub.house _c2018
300			_a789
999			_c32751 _d32751