(3GdfaW heUGOQ GdWGbI GdHOjdI (B- (3GdJbQjQ GdSfhj GdKGdKs - (3efXeI GdCbWGQ GdYQHjI GdeUOQI ddHJQhds ((3LGeYI GdchjJs (3chjJs, 1977)
Keywords: (3GdHJQhds