(3GdbGehS GdSjGSj(B:s (3eNJGQGJ(B/s - (3Hhfh eGQjha,H(B.(3f(B.s; (3GdUGaj,YHOGdQRGbs ((3O(B.(3e(B:s (3GdWQjb GdLOjO,s, 1976)
Keywords: (3GdSjGSIs -- (3eYGLes