Harper Collins Publishers, 1996
Buku Teks
Kratz, Ernst Ulrich, author
Gadjah Mada University Press, 1988
Buku Referensi
Grant, Michael
Penguin Books, 1990
Buku Teks
edited with introductions, bibliographies, and notes by John Wilson Bowyer and John Lee Brooks
Appleton, 1938
Buku Teks
edited by John C. Hunter
Wiley-Blackwell, 2010
Buku Teks