Liu, Kwang-ching
Harvard University Press, 1963
Buku Teks
Schrieke, Bertram Johannes Otto, author
Viking Press, 1936
Buku Teks
Simmons, James C.
Harmony Books, 1990
Buku Teks
Kanter, Donald L. (Donald Lucky), 1925-, author
Jossey-Bass, 1989
Buku Teks
edited by Irving Kristol and Paul Weaver
Lexington Books, 1976
Buku Teks