(3eLehYI HMhK bGfhfjI (B:s (3bGfhf GdYbhHGJ ,bGfhf GdGLQGAGJ GdLfGFjI ,bGfhf GdeQGaYGJ , GdeSFhdjI GdeOfjI (B/s - (3GOhGQ ZGdi GdOgHj(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1978)
(3jJVef HHdjhZQGajG s
Keywords: (3bGfhf GdYbhHGJ (B.s; (3GdbGfhf GdLfGFi(B.s