(3GdCNHGQ (B: s (3CSWhQI aj KdGK YTQI dhMI (B/ s - (3GdaGQSj, eUWais; (3Rdjdg, GdJjLGfjs ((3JhfS (B:s (3GdOGQ GdJhfSjI ddfTQ,s, 1973)
Keywords: (3GdeSQMjGJ GdYQHjIs; (3JhfSs