World Scientific , 1989
Buku Teks
Stakgold, Ivar, author
Society for Industrial and Applied Mathematics, 2000
eBooks
Hashimoto, Koji, author
Springer, 2012
eBooks
Harris, Edward G., author
John Wiley & Sons, 1975
Buku Teks
Vesely, Franz J.
Plenum Press, 1994
Buku Teks