Wong, Roderick, 1944- , author
Society for Industrial and Applied Mathematics, 2001
eBooks
Protter, Philip
Springer-Verlag, 1992
Buku Teks
Protter, Philip E., author
Springer -- Verla, 2005
Buku Teks
Brychkov, Yury A., author
CRC Press , 2008
Buku Referensi
Woodward, J. F., author
Macmillan, 1975
Buku Teks