(3GQGA h GacGQ LOjOI aj Gdaf h JGLjd GdghjI (B/ s - (3LhOj, eMeOMSjfs ((3YeGf (B:s (3OGQ GdfTQ h GdJhRjY,s, 1999)
Keywords: (3Gdafs; (3adSaI Gdafs