Louw, Gideon N., author
Longman Scientific and Technical, 1993
Buku Teks
McDowell, Lee Russell, author
Academic Press, 1992
Buku Teks
by Elmer R. Noble ... [and others]
Lea & Febiger, 1989
Buku Referensi
Hopper, Arthur F., author
Oxford University Press, 1985
Buku Teks
Wilkins, Adam S., author
John Wiley, 1993
Buku Teks