Mubarak, Saleh, author
Pearson-Prentice Hall, 2005
Buku Teks
Dreger, J. Brian, author
Van Nostrand Reinhold, 1992
Buku Teks
Lawson, Charles L., author
Society for Industrial and Applied Mathematics, 1995
eBooks
Smith, R. Nelson, author
W.H. Freeman, 1980
Buku Teks
Bossing, Nelson L., author
Laidlaw Brothers, 1956
Buku Teks