00322nam a2200121Ia 4500008004100000020001800041082001500059100001700074245005000091250000800141260004300149300000800192190710s9999    xx            000 0 und d  a81-224-1522-9  a001.42 K84  aKothari, C R 0aResearch methodology : methods and techniques  a2nd  aNew delhibNew Age Internationalc2005  a401