Larsen, Richard J.
Prentice-Hall, 1981
Buku Teks
Mendenhall, William
Duxbury Press, 1981
Buku Teks
Hoel, Paul Gerhard, 1905-
John Wiley & Sons, 1962
Buku Teks
Devore, Jay L
[Springer, ], 2012
eBooks
Kapadia, Asha Seth
Chapman & Hall/CRC, 2005
Buku Teks