(3GdYdGbGJ GdGbJUGOjI GdOhdjI (B/s - (3CMeO GdZfOhQ s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1969)
. 237(3HHdjhLQGajG(B: (3UaMI (B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdGbJUGO GdOhdi s