Jeroen Janssen, editor
Atlantis Press, 2012
eBooks
Maier, David, author
The Benjamin Cumming Pub., 1988
Buku Teks
Stapleton, Gerald F., author
Tab Books, 1971
Buku Referensi
McGraw-Hill, 1981
Buku Teks
Boolos, George, author
Harvard University Press, 1998
Buku Teks