Rich, William
Overseas development Council, 1973
Buku Teks
Nourse, Edwin G
The Brookings Institution, 1938
Buku Teks
Chia, Siow Yue, author
Cambridge University Press, 2015
Buku Teks
Hirschman, Albert O., author
Twentieth Century Fund, 1963
Buku Teks
Johnson, Harry G., author
George Allen and Unwin, 1958
Buku Teks