(3GdUhajI hGdYbd (B: s (3OQGSI JMdjdjI ebGQfI ddZRGdj hEHf QTO hEHf YQHj (B/ s - (3GdTQbGhj, eMeO YHO Gddgs ((3GdbGgQI (B:s (3ecJHI GdRgQGA,s, 1995)
Keywords: (3GdUhajI(B.s; (3GdadSaI GdESdGejI(B.s