Gothmann, William H.
Prentice-Hall, 1982
Buku Teks
Kleitz, William
Pearson/Prentice Hall, , 2008.
Buku Teks
Tokheim, Roger L., author
McGraw-Hill, 1980
Buku Teks
Porat, Dan I
John Wiley & Sons, 1979
Buku Teks
Gothmann, William H.
Prentice-Hall, 1980
Buku Teks