Hummel, James A.
Addison-Wesley, 1965
Buku Teks
edited by Margit Kovacs
Ellis Horwood, 1992
Buku Teks
edited by Jean Michel Merillon, Kishan Gopal Ramawat
Springer, 2012
eBooks
edited by R. Charudattan and H.L. Walker
John Wiley & Sons, 1982
Buku Teks
Webber, Roger
Cab International, 1996
Buku Teks SO