(3GdGecGfGJ aj GdJQHjI GdHOfjI (B( (3GgejJgG , GfhGYgG , GbSGegG , eLGdGJgG (B)s - (3OQhjT(B. (3YaGa YHO GdefYe TMGJgs ((3efTCI GdeYGQas (3GdGScfOQjIs, 1998)
Keywords: (3QjGVI s; (3GdJQHjI GdQjGVjI (B- (3GbSGes