Wiley-Blackwell, 2010
Buku Teks SO
Manger, Jason J.
McGraw-Hill, 1995
Buku Referensi
Pedley, Paul
Facet, 2006
Buku Teks SO
Eisenberg, Michael B.
Libraries Unlimited, 2004
Buku Teks SO
edited by K. Husnu Can Baser, Gerhard Buchbauer
CRC Press/Taylor & Francis, 2010
Buku Teks SO