Oxford University Press , 1993
Buku Teks
World Bank
Oxford University Press for the World Bank, 1993
Buku Teks
Chan, Steve
Westview Press, 1990
Buku Teks
edited by Henry S. Rowen
Routledge, 1998
Buku Teks
Adelman, Irma
Stanford University Press, 1961
Buku Teks