Christensen, R.M.
Academic Press, 1982
Buku Teks
Fabrizio, Mauro
Society for Industrial and Applied Mathematics, 1992
eBooks
Marques, Severino P. C.
[Springer, ], 2012
eBooks
Ali Arman
1999
UI - Tesis Membership
Istiantoro Soekardi
Yayasan Obor Indonesia, 2004
Buku Referensi