Thompson, William J., author
John Wiley & Sons, 1997
Buku Referensi
Thompson, William J., author
Wiley , 1997
Multimedia
Jonathan M. Borwein, Matthew P. Skerritt
Springer Science;, 2012
eBooks
Nyhoff, Larry, author
Prentice-Hall, 1997
Buku Teks
Metcalf, Michael, author
Oxford University Press , 1990
Buku Teks