edited by John Miksic
Archipelago Press, [date of publication not identified]
Buku Teks SO
Bone, Robert G.
Littlefield, Adam, 1957
Buku Teks SO
edited by Geoffrey Parker
Cambridge University Press, 1995
Buku Referensi
Beck, Roger
Blackwell Publishing, 2007
Buku Teks
Rickard, J.A.
Barnes & Noble, 1952
Buku Teks SO