(3QO GdGYJHGQ GdLfGFj (B:s (3HGdeedcI GdYQHjI GdSYhOjI (B/s - (3YHO GdaJGM NVQs ((3GdQjGV (B:s (3eYgO GdCOGQI GdYGeI ,s, 1984)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B..s
(3GdfU HGddZI GdEfLdjRjI s
Keywords: (3QO GdGYJHGQ hGfbVGA GdYbhHIs -- (3GdSYhOjIs; (3GdbGfhf GdLfGFj(B.s