Denniston, Katherine J., author
Wm. C. Brown, 1993
Buku Teks
Caret, Robert L., author
Wm. C. Brown, 1993
Buku Teks
Holum, John R., author
John Wiley & Sons, 1982
Buku Teks
Boxer, Robert J., author
McGraw-Hill, 1998
Buku Referensi
Butler, Ian S., author
Benjamin/Cummings, 1989
Buku Teks