Thompson, William J.
John Wiley & Sons, 1997
Buku Referensi
Jonathan M. Borwein, Matthew P. Skerritt
Springer Science;, 2012
eBooks
Pitt-Francis, Joe
Springer, 2012
eBooks
Stroyan, K.D.
Academic Press, 1993
Buku Teks SO
George Phillip, 1981
Buku Referensi