Rothman, Kenneth J., author
Oxford University Press, 2002
Buku Teks
Maddala, G.S., author
Macmillan, 1989
Buku Teks
Christy, George A., author
McGraw-Hill, 1960
Buku Teks
Colinvaux, Paul A., author
John Wiley & Sons, 1973
Buku Teks
Sokal, Robert R., author
W.H. Freeman, 1987
Buku Teks