(3JGQjN GdCOH GdehQjJGfj (B: s (3NdGUI LghO JCQjNg h JCUjdg h JUfjag (B/ s - (3hdO MHjH Gddg, CMeOs ((3OeTb (B:s (3efThQGJ EJMGO GdcJGH GdYQH,s, 1996)
Keywords: (3GdCOH GdYQHjs; (3GdfbO GdCOHjs; (3GdCOH GdEaQjbjs; (3ehQjJGfjGs