Burd, Stephen D., author
Cengage Learning, 2016
Buku Teks
Hoie, Tore A.
North Holland, 1981
Buku Teks
Wilkinson, Barry, author
Prentice-Hall, 1996
Buku Teks
Stallings, William, author
Pearson Education, 2003
Buku Teks
Stallings, William, author
Pearson, 2003
Buku Teks