(3UhQ ef GdSjQI GdUMGHjGJ (B/s - (3GdSejHGfj, YHO GdMejO Hf YHO GdQMefs ((3GdQjGV (B:s (3OGQ GHf NRjeI,s, 1998)
Keywords: (3GdUMGHI hGdJGHYhfs