Harman, Willis
Berrett-Koehler , 1998
Buku Teks
Moore, Wilbert E. (Wilbert Ellis)
Prentice-Hall, 1963
Buku Teks
edited by Robert A. Nisbet
Blackwell, 1972
Buku Teks
edited with an introduction by Robert A. Nisbet
Harper Torchbooks, 1972
Buku Teks
Eisenstadt, Shmuel Noah
John Wiley & Sons, 1973
Buku Teks