(3HDS GdJGQjNjI (B/ s - (3HhHQ, cGQds; (3GdeWdHj, SGedQ YHOGdLHGQ s ((3HZOGO(B:s (3ecJHI GdacQ GdYQHj ddfTQ hGdJhRjY,s, 1988)
Keywords: (3HDS GdJGQjNjI s