00393nam a2200133Ia 450000500170000000800410001702000180005808200130007610000150008924500540010426000500015830000130020865000380022120250521032339.0240331s9999    xx            000 0 und d  a9789551772864  bUYAa301  aUyangoda,J 0aSamajeeya Vidya Pariyeshana Yojanavaliyak Liveema  aColombobSocial Scientist's Associationc2011  a195 p .,  aSocial Science - Research Methods