(3efgGL GdeSde (B: s (3cJGH YbGFO hBOGH hGNdGb hYHGOGJ heYGedGJ (B/s - (3GdLRGFQj, GHh HcQ s ((3GdbGgQI(B[(3eUQ(B] : s (3OGQ GdcJH GdSdajI, s, 1992)
Keywords: (3GdGNdGb GdGSdGejI s