Dorn, William S., author
John Wiley & Sons, 1976
Buku Teks
Haggarty, Rod, author
Addison-Wesley, 2002
Buku Teks
Watson, W.A., author
Edward Arnold, 1969
Buku Teks
Ulrich Langer, editor
Springer-Verlag , 2012
eBooks
Jonathan M. Borwein, Matthew P. Skerritt
Springer Science;, 2012
eBooks