(3GdJfGaQ GdUhJi hGdXGgQ GdSjGbjI (B/s - (3GdTjN, YHO GdhGMO MSfs ((3GdGScfOQjI (B((3eUQ(B) :s (3ecJHI heWHYI GdGTYGY,s, 1991)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
(3O(B. (3LGHQ YUahQ ;s
Keywords: (3GdGUhGJ GddZhjI GdYQHjIs; (3GddZI GdYQHjIs -- (3CdaGXs