(3GdNHQI GdYdejI hGdYedjI GdRGFOI (B/s - (3eMeO YHO GdhGMO GdLejdjs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2000)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdaQfSjIs
Keywords: (3GdfTGW GdEOGQjs; (3GdbGfhf GdEOGQjs