(3GddHGf aj TQM GdcJGH s - (3YHO GdZfj GdZfjej GdOeTbj GdejOGfj GdMfaj (B- (3JMbjb eMehO GdfhGhjs ((3HjQhJs (3OGQ GdcJGH GdYQHjs, 1979)
Keywords: (3GdJaSjQ hYdhe GdbQGfs