Scheid, Francis, author
McGraw-Hill, 1968
Buku Teks
Ortega, James M., 1932- , author
Society for Industrial and Applied Mathematics, 1990
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Atkinson, Kendall E., author
John Wiley & Sons, 2001
Buku Teks
Bradie, Brian, author
Pearson/Prentice Hall, 2006
Buku Teks
Froberg, Carl-Erik, author
Addison-Wesley, 1972
Buku Teks