Upp, E. L. (Edmund Loy), 1927-2007
Gulf Professional, 2002
Buku Teks
LaNasa, Paul J., 1941-
Butterworth-Heinemann, 2014
eBooks
Ower, E.
Pergamon Press, 1977
Buku Teks
Baker, Roger C.
Cambridge University Press, 2016
Buku Teks
Baker, Roger C.
Cambridge University Press, 2000
Buku Referensi