00305nam a2200133Ia 45000030006000000080041000060400015000471000017000622450043000792500011001222600009001335460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aTandon, B.C.  aReseach methodology in Social sciences  aSecond  c1987  aEnglish20220125165623.0