(3JGQjN GdYQH (B( (3eWhd (B) / s - (3MJi, ajdjHs; (3LQLj, GOhQOs; (3LHhQ, LHQGFjds ((3HjQhJ (B:s (3OGQ GdcTGa ddfTQ h GdWHGYI h GdJhRjY,s, 1953)
Keywords: (3GdYQHs; (3GdJGQjNs