Hofstadter, Douglas R., 1945-, author
Basic Books, 1985
Buku Teks
by William A Haviland [and others]
Wadsworth and Cengage Learning, 2013
Buku Teks
Niles, Mary Cushing, author
Harper & Brothers, 1958
Buku Teks
Parkinson, Cyril Northcote, 1909-1993, author
Federal Publications, [Date of publication not identified]
Buku Teks
Fleming, Michael C., author
Prentice-Hall, 1991
Buku Teks