(3GdYGed GdOjfi hGdghjI GdJhfSjI (B/ s - (3SYO GdZQGHs ([S.N] : (3GdOGQ GdJhfSjI ddfTQ , s, 1990)
Keywords: (3JhfSs; (3GdGSdGe hGdeLJeYs; (3GdKbGaI GdGSdGejIs; (3GdeZQH GdYQHis; (3GdGSdGe hGdSjGSIs