(3GdJQHjI YHQ GdJGQjN (B:s (3ef GdYUhQ GdbOjeI MJi ChGFd GdbQf GdYTQjf (B/s - (3YHOGdOGFe, YHOGddgs ((3HjQhJ(B:s (3OGQ GdYde ddedGjjf ,s, 1973)
Keywords: (3GdJQHjI hGdJGQjNs