(3JLQHI JQHhjI aj JYde GddZI GdYQHjI (B/ s - (3GdeUQj, eMeO YHO GdZfjs ((3YeGf (B:s (3OGQ GdaQbGf,s, 1984)
Keywords: (3GddZI GdYQHjIs; (3GdOQGSGJs; (3GdJOQjSs