(3GdNTH (B: s (3cJH GdaQGTI (B/ s - (3eWdb, Qajbs ((3HjQhJ (B:s (3ecJHI dHfGf fGTQhf,s, 1997)
Keywords: (3UfGYg GdNTHs; (3GWaGd eQMdg eJhSWg (B(6-9) (3SfhGJs