(3GdThQi hGKQgG aj GdOjebQGWjI (B.s (3OQGSI ebGQfI (B.s - (3GdGfUGQj , YHO GdMejO GSeGYjd (B.s ((3HjQhJ (B:s (3efThQGJ GdecJHI GdYUQjI ,s, 1980)
Keywords: (3GdThQi (B.s