00349nam a2200133Ia 450000500170000000800410001702000130005808200130007110000140008424500390009826000480013730000120018565000180019720250529031935.0240331s9999    xx            000 0 und d  a13919148  bPATa303  aPerera, S 0aPathitha :bsamaja vidya sameeksha  aColombobSocial Scientist Associationc2003  a150 p.,  aSocial Survey