(3eMeO Ydj LfGM (B: s (3eDSS GdHGcSJGf (B/ s - (3hdHQJ, SJGfdjs; (3RcGQ, Sgjds ((3OeTb (B:s (3OGQ bJjHI ddWHGYI h GdfTQ h GdJhRjY,s, 1988)
Keywords: (3HGcSJGfs; (3JGQjN HGcSJGfs