(3Mb GdGSJYGfI HeMGe CKfGA JMbjbGJ GdTQWI GdbVGFjI (B/s - (3Wg, eMehO CMeOs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 1999)
(3HHdjhLQGajI (B: (3U(B. 153-161.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJMbjb GdLfGFjs -- (3eUQs; (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs