Ellis Horwood, 1992
Buku Teks
Davis, Philip J., author
John Wiley & Sons, 1979
Buku Teks
Perlis, Sam
Addison-Wesley Pub. Co. , 1958
Buku Teks
Horn, Roger A, author
Cambridge University Press, 2013
Buku Teks
Horn, Roger A, author
Cambridge University Press, 2018
Buku Teks