Southerton, Alan
John Wiley & Sons, 1994
Buku Referensi
Coffin, Stephen, author
Osborne/McGraw-Hill, 1986
Buku Teks
Prata, Stephen, author
Sams Publishing , 1987
Buku Teks
Kerrisk, Michael, author
No Starch Press, 2010
Buku Teks
Abdul Kadir, author
Andi Yogyakarta, 2002
Buku Teks