Grobbee, Diederick E., author
Jones & Bartlett Learning, 2015
Buku Teks
Morris, Alan S., author
Elsevier, 2006
Buku Teks
Bentley, John P., author
Prentice-Hall, 2005
Buku Teks
Payne, James L., author
Lytton, 1975
Buku Teks
Aston, Richard, author
Macmillan, 1990
Buku Teks