Das, Ashok
World Scientific, 1989
Buku Teks
Kampen, N.G. van, author
North-Holland, 1981
Buku Teks
Pruss, Jan, author
Springer, 2012
eBooks
Tuckwell, Henry C., author
Society for Industrial and Applied Mathematics, 1989
eBooks
edited by Christopher T.H. Baker, Geoffrey F. Miller
Academic Press, 1982
Buku Teks