(3ai GYbGH GdKhQI GdeUQjI L(B1 / s - (3YHOGdQMef GdQGaYis ((3GdbGgQI (B: s (3ecJHI GdfgVI GdeUQjI , s, 1947)
Keywords: (3eUQs; (3GMeO aDGOs; (3SYO RZdhds; (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjK (B- (3KhQI (B1919s