Roberts, J.W.
City of Sokrates : an introduction to classical Athens / J. W. Roberts
Routledge, 1998
 Buku Teks SO
Von Mises, Ludwig, 1881-1973
The free and prosperous commonwealth an exposition of the ideas of classical liberalism
D. Van Nostrand, 1962
 Buku Teks SO
Robbins, Lionel
The theory of economic policy in English classical political economy
Macmillan, 1952
 Buku Teks
Malaysia's socio-economic transformation: ideas for the next decade
edited by Sanchita Basu Das, Lee Poh Onn
Institute of Southeast Asian Studies , 2014
 eBooks
Hydroelectricity prospects in the new energy situation / A Symposium of the United Nations Economic Commission for Europe, Athens, Greece. 5-9 November 1979
A Symposium of the United Nations Economic Commission for Europe, Athens, Greece. 5-9 November 1979
Perpustakaan Nasional , 1981
 Buku Teks