(3SGcf GdfLhe hbUU CNQis - (3djhQHjI(B. (3cQSJjGf hBNQhfs ((3hRGQI GdKbGaI hGdEYdGes (3HZOGOs, 1989)
(3JQLeI egG eMeO MSfs
Keywords: (3GdbUI GdYQHjIs; (3bUU eJQLeIs