Anders Biel, Daniel Eek, Tommy Garling, Mathias Gusgsson, editor
Springer, 2008
Buku Teks
Free Press, 1978
Buku Teks
Bloch, Herbert A., author
Alfred A. Knopf, 1952
Buku Teks
Stimson, John, author
John Wiley & Sons, 1985
Buku Teks
Arrow, Kenneth J., author
John Wiley & Sons, 1951
Buku Teks