Hansen, Harry L., author
Richard D. Irwin, 1956
Buku Teks
Herbert, Theodore T., author
Macmillan, 1976
Buku Teks
Dubin, Robert, author
Prentice-Hall, 1962
Buku Teks
Anthony, Robert N. (Robert Newton), 1916-2006, author
Richard D. Irwin, 1968
Buku Teks
Mansfield, Edwin, author
W.W. Norton, [date of publication not identified]
Buku Teks