. (3GdHjFI hGdeLJeYs - . (3ZdGH, eMeO GdSjOs ((3GdbGgQIs (3ecJHI GdGfLdh GdeUQjIs, 1971)
(3eQGLY aj BNQ GdcJGHs
Keywords: (3GdLZQGajG GdHTQjIs; (3GdLZQGajG GdGLJeGYjIs