edited by Peter G. Bruce
Cambridge University Press, 1997
Buku Teks SO
Goto, Kazuhiro Sylvester
Elsevier, 1988
Buku Teks SO
Lenk, John D.
Prentice-Hall, 1971
Buku Referensi
Genn, Robert C.
Parker Publishing Company, 1981
Buku Referensi
editors, Perrin Walker, William H. Tarn
CRC Press, 1991
Buku Referensi