(3bjGS GdhYj GdCefj dOi GdLeghQ GdYQHj (B/s - (3GdfUQGhj, eUWais ((3GdQjGV (B:s (3GdeQcR GdYQHj ddOQGSGJ GdCefjI hGdJOQjH,s, 1992)
(3edGMb (B: (3U(B. 159-163.s
(3HHdjhLQGajI (B: (3U(B. 155-158.s
Keywords: (3GdCef Gdbhejs -- (3GdHdGO GdYQHjIs; (3GdCef GdOGNdjs -- (3GdHdGO GdYQHjIs; (3ecGaMI GdLQjeIs -- (3GdHdGO GdYQHjIs