Greenwood Press, 1981
Buku Referensi
Friedman, Lawrence M., 1930-, author
W.W. Norton, 1984
Buku Teks
Ross, Martin J., author
A Fawcett Crest Book, 1975
Buku Teks
Browne, Ray B., author
Bowling Green State University, 1986
Buku Teks
David Werhoru, author
2015
UI - Tesis Membership