Zander, Alvin
Making groups effective / Alvin Zanden
Jossey-Bass Publishers, 1994
 Buku Teks
Dawson, Robert MacGregor
The Government of Canada/ Robert MacGregor Dawsson
The Univ. of Toronto Press , 1959
 Buku Teks
Murray, John Edward
Murray on contracts
Michie, 1990
 Buku Teks
Doren, Carl van
The great rehearsal : the story of the making and ratifying of the constitution of the United States
Time Reading Program, 1965
 Buku Teks SO
Knox, Frank M.
The knox standard guide to design and control of business forms
McGraw-Hill, 1965
 Buku Teks SO