(3GdKbGaI GdYQHjI(B: (3GSdGejI GUhdgG hGfJeGFgG (B/ s - (3GfhQ GdLfOis ([S.N] : (3OGQ GdcJGH GddHfGfi , s, 1982)
Keywords: (3GdKbGaI GdGSdGejIs