Montgomery, Douglas C.
John Wiley & Sons, 2012
Buku Teks
Edwards, Allen L.
W.H. Freeman, 1984
Buku Teks
Seber, G.A.F
John Wiley & Sons, 1977
Buku Teks
Olive, David J
Springer International Publishing, 2017
eBooks
Robert, Harry V.
McGraw-Hill, 1982
Buku Teks