Dayal, Surendra
Butterworth, 1996
Buku Teks SO
Nedzel, Nadia E.
Wolters Kluwer Law Business, 2008
Buku Teks
Neumann, Richard K.
Wolters Kluwer Law & Business, 2013
Buku Teks SO
Kennedy-Grant, Tomas
Butterworth, 1999
Buku Teks
Dietsch, Betty Mattix
McGraw-Hill, 2003
Buku Teks SO