(3GdeSGgeI GdCUdjI aj GdLQjeI (B:s (3OQGSI ebGQfI (B/s - (3GdOcJhQI ahRjI YHOGdSJGQs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1967)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
Keywords: (3GdbGfhf GdLfGFjs; (3bGfhf GdYbhHGJs -- (3GdbSe GdYGes