(3GdLed (B: (3SajfI GdUMQGA (B: s (3SajfI GdUMQGA (B/ s - (3aJMj, JQGLjs ((3GdQjGV (B:s (3ecJHI GdYHjcGf,s, 1997)
Keywords: (3GdEHds; (3GdEHds; (3CWaGd eQMdI eJhSWI (B(6-9 (3SfhGJ(B)s