(3ef GbUi GdZQH Gdi GbUi GdTQb (B:s (3LhdGJ ai GeQjcG hGhQHG hGdTQb GdGbUi hGSJQGdjG (B/s - (3YHGS GdWQGHjdis ((3GdbGgQI (B:s (3GdOGQ GdeUQjI GddHfGfjI ,s, 2001)
Keywords: (3GOH GdQMdGJs; (3GdbUU GdYQHjIs