(3OQhS aj GdbGfhf GdEOGQj (B:s (3GdYbhO GdEOGQjI hGdCehGd GdYGeI (B/ s - (3QCaJ ahOgs ((3GdbGgQI (B:s (3ecJHI GdfUQ, LGeYI GdbGgQI,s, 1995)
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdaQfSjIs
Keywords: (3GdbGfhf GdEOGQj s