Turban, Efraim, 1930-
Decision support and expert systems : management support systems
Prentice-Hall, 1995
 Buku Teks
Turban, Efraim, 1930-
Decision support systems and intelligent systems
Prentice-Hall, 2005
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Dispute resolution systems in the workplace: a study relating to their estabilishment and support
 Artikel Jurnal
Knapp, Donna
A guide to customer service skills for the help desk professional
Course Technology, Cengage Learning, 2011
 Buku Teks SO
Digital subscriber line 2001 comprehensive report
International Engineering Consortium
International Engineering Consortium, 2001
 eBooks