Lundgren, Stefan
Quintessence publishing, 2008
Buku Teks
Beagle, Jay R.
Wiley-Blackwell, 2013
Buku Teks
Hamid R. Shafie
Blackwell Munksgaard, 2006
Buku Teks
Barnes, I.E., 1939-
Butterworth-Heinemann, 1991
Buku Referensi
Richard A. Jaffe, Schmiesing Clifford A., Golianu, Brenda, editors
Wolters Kluwer, 2015
Buku Teks SO