edited by Ray Sarch
McGraw-Hill, 1990
Buku Referensi
Stalling, William, author
Prentice-Hall, 1997
Buku Teks
Sherman, Kenneth, author
Reston Publishing company, 1981
Buku Teks
White, Curt M., author
Thomson, 2002
Buku Teks
White, Curt M., author
Cengage Learning, 2016
Buku Teks