(3JWhjQ GdEYdGe GdCefj GdYQHj (B/s - (3HOQ, YHO GdefYe eMeOs ((3GdQjGV (B:s (3CcGOjejI fGja GdYQHjI ddYdhe GdCefjI,s, 1997)
(3HHdjhLQGajI (B: (3U(B. 121-126.s
Keywords: (3GdCef GdOGNdj aj hSGFd GdEYdGes -- (3GdHdGO GdYQHjIs; (3GdCef Gdbhej aj hSGFd GdEYdGes -- (3GdHdGO GdYQHjIs