(3GdMQH GdCeQjcjg GdLOjOg (B/ s - (3GdRhGgQg, QGfjG HQcGJs; (3GdQLHj, eMehO CHh aQhgs; (3GdWYGefg, TGOj YHO GdcQjes ((3YeGf (B:s (3GdeDdajf,s, 2001)
Keywords: (3GdSjGSIGdNGQLjIs; (3JGQjN CeQjcGs; (3GdYdGbGJ GdOhdjIs