(3eMGVQGJ ai GdLRGA GdLfGFi (B/s - (3CMeO YhV HdGds ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2003)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdbGfhf LfGFi s; (3GdLRGA GdLfGFjs