(3OQGSGJ aj Yde GdGLJeGY GdLfGFj (B/ s - (3NaGLj, MSf Ydj s ([(3O(B. (3e(B.] :s (3MSf Ydj NaGLj,s, 1977)
(3HHdjhLQGajI (B: (3U(B. 248-253. s
Keywords: (3Yde GdGLJeGY GdLfGFj s