Survey of social science volume 5
editor, Frank N. Magill
Salem Press, 1994
 Buku Referensi
Survey of social science volume 3
editor, Frank N. Magill
Salem Press, 1994
 Buku Referensi
Survey of social science volume 2
editor, Frank N. Magill
Salem Press, 1994
 Buku Referensi
Survey of social science volume 1
editor, Frank N. Magill
Salem Press, 1994
 Buku Referensi
Encyclopedia of sociology; Volume 4
Edgar F. Borgatta, editor-in-chief, Marie L. Borgatta, managing editor
Macmillan, 1992
 Buku Referensi