(3GdLjhdhLjG GdJWHjbjI ddgfOSIGdeOfjI (B/ s - (3MSf eMeO MejOIs ((3HjQhJ (B: s (3OGQ GdQGJH GdLGeYjI , s, 1989)
Keywords: (3GdLjhdhLjG WHbGJ GdGQVs; (3GdJYOjfs; (3GdLjhdhLjG GdHfGFjIs; (3GdLjhdhLjG GdajRjGFjIs