Dobb, Maurice
International Publishers, 1947
Buku Teks
edited by Stuart Corbridge
Edward Arnold, 2002
Buku Teks
Graduate School of International Development Nagoya University, 2007
Majalah, Jurnal, Buletin
Pieris, Ralph
Rotterdam University Press, 1969
Buku Teks
The Massachusett Institute of Technology, 1977
Buku Teks