(3GdYOhGf GdUdjHi Ydi HdGO GdTGe (B: s (3gRjeI dhjS GdJGSY ai GdGQGVi GdebOSI (B/ s - (3LhRja fSje jhSas ((3HjQhJ (B:s (3OGQ GdfgVI GdYQHjI ,s, 1981)
Keywords: (3GdJGQjN GdGSdGeis; (3GdMQhH GdUdjHjI ai adSWjf hGdTGes