Galbraith, John Kenneth, 1908-2006, author
Houghton Mifflin, 1964
Buku Teks
Todaro, Michael P., author
Longman, 1997
Buku Teks
Todaro, Michael P., author
Addison-Wesley , 2000
Buku Teks
Sengupta, Ramprasad
Boston Institute for economic development of the Boston University 1996,
Buku Teks
Ohlin, Bertil.
Harvard University Press, 1957
Buku Teks