Etzioni, Amitai, author
Prentice-Hall, 1964
Buku Teks
Peltonen, Tuomo, author
Emerald, 2016
eBooks
Shafritz, Jay M., author
Wadsworth, 2016
Buku Teks
Ginzberg, Eli, 1911-, author
Columbia Univesity Press, 1957
Buku Teks
Bell, Gerard D., author
Prentice-Hall, 1967
Buku Teks