(3GdHQeLg Gdgjcdjg HdZI ahQJQGf (B77 (3ddgfOSg h GdYdhe (B/ s - (3GjJQ, OhdhQSs; (3SQMGf, SGejs ((3YeGf (B:s (3eQcR GdcJH GdCQOfj,s, 1991)
Keywords: (3GdMhGSjHs; (3ahQJQGfs; (3dZGJ GdHQeLIs