Fraser, G.S.
Grove Press, 1961
Buku Teks
Kenner, Hugh
The University Press Glasgow, 1951
Buku Teks
Cambridge University Press, 2007
eBooks
Ackroyd, Peter, 1949-, author
Thames and Hudson, 1987
Buku Teks
Jordan L. Budiyono, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1986
UI - Skripsi (Membership)