Kuykendall, Ralph S., author
Prentice-Hall, 1961
Buku Teks
Stimson, J. Frank, author
Martinus Nijhoff, 1964
Buku Referensi
Bellwood, Peter, author
Thames and Hudson, 1987
Buku Teks
edited by J.B. Banatre and D. Le Metayer
Springer-Verlag, 1992
Buku Teks
Whitehouse, Gary E.
Chart, Diagrs , 1976
Buku Teks