Li Wei
John Wiley & Sons Ltd, 2014
Buku Teks
edited by Kirsten Malmkjær, James M. Anderson
Routledge, 1991
Buku Referensi
Harris, Zellig S., author
Chicago Phoenix Books, 1969
Buku Teks
Oxford University Press, 1995
Majalah, Jurnal, Buletin
Allen, J.P.B.,edited
University Press , 1979
Buku Teks