(3GdVQGFH Ydi GdKQhI GdYbGQjI (B/s - (3YHO GdYRjR GdUjQai s ((3GdbGgQI (B:s (3OGQ GdcJGH GdYQHi (B,s, 1953)
. 250 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdVQGFH s