(3GdbVGA GdEOGQj (B:s (3OQGSI ebGQfIs 1 - (3eMehO eMeO MGaXs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1972)
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdbVGA GdEOGQj hhXGFags; (3GdbGfhf GdEOGQjs