Nafziger, E. Wayne
Cambridge University Press, 2006
Buku Teks
Griffin, Keith
St. Martin Press, 1989
Buku Teks
Todaro, Michael P.
Longman, 1992
Buku Teks
Staley, Eugene
Published for the Council on Foreign Relations by Harper, 1961
Buku Teks
Heilbroner, Robert L.
Harper & Row , 1963
Buku Teks