Foumeny, E. A
Ellis Horwood, [date of publication not identified]
Buku Teks
Andreone, Carl F.
McGraw-Hill, 1998.
Buku Teks
Foster Wheeler Corporation, 1957
Buku Teks
Raitt, Gordon, author
Cambridge University Press, 1992
Buku Teks
Hartnett, J.P.
Hemisphere, 1979
Buku Teks