Wheelan, Susan A.
Sage, 1999
Buku Teks
Tichy, Noel M.
Harperbusiness, 2002
Buku Teks
Wilkins, David, 1971-, author
Mc-Graw-Hill, 2013
Buku Teks
Evenson, Renee, 1951-, author
Society for Industrial and Applied Mathematics, 2007
eBooks
Liswood, Laura A., author
Pandora, 1995
Buku Referensi