(3GdefgL Gdbhje aj JaSjQ GdbQBf GdcQje (B:s (3OQGSI fXQjI JWHjbjI dShQI GdMLQGJ (B/s - (3CHh GdYdG, YGOd eMeO UGdMs ((3HjQhJ (B:s (3eDSSI GdQSGdI,s, 1998)
Keywords: (3GdbQBfs -- (3ShQI GdMLQGJs -- (3JaGSjQ MOjKIs