Assheton, Richard, author
University press, 2014
Buku Teks
Weil, David N., author
Pearsons Addison-Wesley, 2009
Buku Teks
Barro, Robert J.
MIT Press, 2003
Buku Teks
Barro, Robert J., author
McGraw-Hill, 1995
Buku Teks
Arndt, H. W. (Heinz Wolfgang), 1915-2002, author
Australian NAtional University Press, 1972
Buku Teks