(3GdbeY aj GdNWGH GdQhGFj GdYQHj s ((3bQGAI aj GYeGd eLehYI ef GdQhGFjjf GdYQH(B) /s - (3GHh Yha ,YHO GdQMefs ((3GdbGgQI (B:s (3eQcR GdbGgQI ddOQGSGJ Mbhb GdGfSGf ,s, 1999)
Keywords: (3GdNWGH GdQhGFj GdYQHj (B- (3OQGSI s