(3ef GdJNda Zdi GdfgVI (B:s (3QDjI ebGQfI (B/s - (3YHO GdMejO TQa s ((3eUQ (B:s (3OGQ hgHI (B,s, 1980)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdJfejI GdGbJUGOjI s; (3fgVI GdeLJeYGJ s