(3GdCef GdPj fYjTg (B/s - (3bRGR, MSf YHO GdMj,s 1338-1421 (3gLQjG(B.s ([(3O(B. (3e(B.] :s [(3O(B. (3f(B.](3,s, 1989)
Keywords: (3GdCef GdOGNdjs -- (3GdSYhOjIs; (3GdTQWIs -- (3GdSYhOjIs