Gray, Basil
Faber and Faber Ltd, 1959
Buku Teks
Vincent, Irene Vongehr
University of Chicago, [date of publication not identified]
Buku Teks
Huang, Ray.
Cambridge University Press, 1974
Buku Teks
[Springer, ], 2012
eBooks
Jih-Jeng Huang, author
Taylor and Francis, 2018
Artikel Jurnal