(3CMcGe RjGOg GdCLQg h abG ddbGfhf (B1997 (3h GdbGfhf (B136 (3dSfI (B1981 (3h cjajI MSGjgG h eOi OSJhQjJgG (B/ s - (3EHQGgje, gdGd jhSas ((3GdbGgQI (B:s (3ecJHI h eWHYI GdCTYGY GdafjI,s, 1998)
Keywords: (3bGfhf GdedcjIs; (3GdEjLGQs; (3YbhO GdEjLGQ GdJLGQjIs; (3VHW GdEjLGQs