00374nam a2200145Ia 450000500170000000800410001702000130005808200130007110000150008424500360009926000490013530000120018465000180019665000140021420250528015646.0240331s9999    xx            000 0 und d  a18002234  bGUNa303  aUyangoda,J 0aNiwton Gunasinghe lipi ekathuwa  aColombobSocial scientists Associationc2006  a59 p .,  asocial theory  apractices