(3GdeSFhdjI GdLfGFjIddUjGOdI (B:s (3OQGSI ebGQfI (B/s - (3CSGeI YHOGddg bGjOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1992)
(3jJVef bGFeI eQGLY s
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFi s; (3GdeSFhdjI GdLfGFjI ddCWHGA hGdUjGOdIs