(3ChQGb eLehYI cJGH CMeQ (B:s (3Yf aXGFY GdEfLdjR aj adSWjf hZOQ GdjghO hUHQ GdYQH (B/s - (3eMeO Ydi GdWGgQs (3efTjA LQjOI GdThQi (B.s ((3eUQ (B:s (3ecJH GdCSJYdGeGJ GdadSWjfj GdYQHj (B,s, 1949)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3JGQjN GdYQHjs; (3GdbVjI GdadSWjfjI s