Wiesmeth, Hans
Springer, 2012
eBooks
Pojman, Louis P.
Wadsworth and Cengage Learning, 2012
Buku Teks SO
Askari, Hossein
John Wiley & Sons, 2015
Buku Teks SO
Hackett, Steven C.
M.E. Sharpe, 2001
Buku Teks SO
Kolstad, Charles D.
Oxford University Press, 2000
Buku Teks