Flitter, Hessel Howard, author
Mosby, 1976
Buku Teks
Griffiths, David J., author
Wiley-VCH, 2010
Buku Teks
edited by George H. Weiss
Society for Industrial and Applied Mathematics, 1994
eBooks
Butler, S. T.
Horwitz, 1960
Buku Teks
Beiser, Arthur, author
McGraw-Hill, 1964
Buku Teks