(3eLehYI GdeYGgOGJ h GdEJaGbjGJ(B/s - (3hRGQI GdNGQLjIs ((3eUQ(B:s, 1960)
(3jMJhj Ydj agQS JGQjNj h agQS gLGFj(B.s
Keywords: (3bGfhf Ohdj YGes; (3GdeYGgOGJ h GdGJaGbGJs