(3eQV Gdbdb s - (3TjgGf ,O(B.(3OGajO (B.(3a(B.s; (3TYdG f ,YRJ s; (3SdGeI , CMeO YHO GdYRjR s ((3GdchjJ (B:s (3eWGHY GdQSGdI ,s, 1988)
Keywords: (3Gdbdb s -- ((3Yde GdfaS (B)s