(3NGfbGhGJ GdUhajI ai eUQ (B:s (3aj GdYUQjf GdGjhHj h Gdeedhcj(B/s - (3YGUe eMeO QRb (B.s ((3GdbGgQI (B:s (3ecJHI eOHhdj ,s, 1997)
(3jTJed Ydi GQLGYGJ HHdjhLQGajg s
Keywords: (3GdJUhas -- (3JGQjN s -- (3eUQ s; (3eUQs -- (3JGQjN s -- (3GdYUQ GdGjhHi s; (3eUQ s -- (3JGQjN s -- (3YUQ GdeeGdjc s