Collett, D.
Chapman and Hall, 1991
Buku Teks
Harrell, Frank E., Jr.
Springer International Publishing, 2015
eBooks
Bohning, Dankmar
CRC Press, Taylor & Francis Group, 2008
Buku Teks
Mahmoud, Hosam M.
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Johnson, Norman L.
John Wiley & Sons, 1977
Buku Teks