Llewellyn, Kate
Hudson Hawthorn, 1989.
Buku Teks
edited by Margo Todd
Routledge, 1995
Buku Teks
edited by Jean Woolmington
Cassell Australia, 1976
Buku Teks
Bowring, Richard
Oxford University Press, 2017
eBooks
Laufer, Berthold, 1874-1934
P.D. & Ione Perkins, 1946
Buku Teks