Όμηρος
Jeffrey Eugenides
Laura E. Berk
John W. Santrock
Michael P. Todaro
Daniel Goleman
Thomas H. Cormen
Martin Kleppmann
Ian L. McHarg
Kathleen Stassen Berger
United States. General Accounting Office
Jeff Sutherland
J. Kishore
Course Technology
Barry C. Field
Debraj Ray
Arundhati Roy
James Ferguson
Paul Collier
U. N. Millennium Project