Oxford University Press, 1995
Majalah, Jurnal, Buletin
Neter, John, author
Allyn and Bacon, 1993
Buku Teks
Fetter, C. W. (Charles Willard), 1942-, author
Prentice-Hall, 1994
Buku Teks
Deborah Hughes-Hallett ... [and others], with the assistance of Otto K. Brescher, Eric Connally, Richard D. Porter.
John Wiley & Sons, 2003
Buku Teks
Fetter, C. W. (Charles Willard), 1942-
Prentice-Hall, 2001
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