Austin, Donald F.
Charles C. Thomas, 1974
Buku Teks
edited by C. Glen Mayhall
Williams & Wilkins, 1996
Buku Teks
Krickeberg, Klaus
Springer, 2012
eBooks
Nelson, Kenrad E.
Jones and Bartlett Publisher, 2005
Buku Teks
Kemm, John
Macmillan, 1995
Buku Teks