Stakgold, Ivar, author
Society for Industrial and Applied Mathematics, 2000
eBooks
Spiegel, Murray R., author
Erlangga , 1986
Buku Teks
Prenter, P. M.
John Wiley & Sons, 1975
Buku Teks
Duffy, Dean G., author
Chapman & Hall/CRC , 2008
Buku Teks
Churchill, Ruel V., 1899-1987, author
McGraw-Hill, 1963
Buku Teks