(3GdfRYI GdGfSGfjI YfO afSGf aGf LhN ef NdGd eQGSdGJg (B/ s - (3RjfH YHOGdYRjRs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1993)
Keywords: (3GdafGfhfs; (3Gdafs; (3GdQSGehfs; (3aGf LhNs