Kennedy, Peter, author
MA Blackwell Publishing, 2008
Buku Teks
Theil, Henri, author
North-Holland, 1971
Buku Teks
Wooldridge, Jeffrey M., 1960-, author
South-Western College, 2000
Buku Teks
by George G. Judge [and others]
John Wiley & Sons, 1980
Buku Teks
Davidson, Russell, author
Oxford University Press, 1993
Buku Teks