(3cJGH GdcJGHs - (3GHf OQSJhjg,J (B347 (3g` s
(3GdJhKjbGJ GdeQLYjI (B:s
(3GdCYdGe ; NjQ GdOjf GdRQcdj (B, (3J (B1396 (3g` (B/ 1976(3e(B: (3L (B4 - (3U (B76s
(3cTa GdXfhf dMGLi NdjaI(B: (3L (B2 - (3U (B1451s
(3eUOQ GbJfGA GdCUd (B:s
(3GdQHGW (B_ (3GdeZQH (B(41) s
Keywords: (3GdeYGQa GdYGeIs