The British Contribution to Italian legal Thinking, in The British Contribution to the Europe of the Twenty-First century, edited by B. Markesinis, 2002
Tradition and Europeanization in Italia Law, BIICL, 2005
Compensation for personal Injury in English, German and Italian Law, A Comparative Outline, B. Markesinis, M. Coester, G. Alpa, A. Ullstein, CSICL, 2005
G. Alpa The Age of Rebuilding, Sketches of the new Italian Private Law, ICLQ Editor, 2007
ALPA E ZENO ZENCOVICH, Italian Private Law, Cavendish, 2007
G. ALPA, What is private Law?, trad. Da Lordi, PAC, 2010
G. ALPA, Markets and Comparative Law, in BIICL, 2010
Compensation for personal Injury in English, German and Italian Law, A Comparative Outline, B. Markesinis, M. Coester, G. Alpa, A. Ullstein, CSICL, 2 ed., 2011
ALPA, Towards a European Contract Law, in Towards a European Contract Law Edited by Reiner Schulze, Jules Stuyck, Sellier, 2011
ALPA, Compensation in Contract, in Mads Andenas and Kåre Lilleholt (eds), Remedies and Substantive Law European Dimensions of Economic and Private Law, University of Oslo Faculty of Law Legal Studies Research Paper Series No. 2011-18
ALPA, Competition of Legal Systems and Harmonization of European Private Law, Sellier 2013
ALPA, FUSARO, GRONDONA, Instituciones de derecho privado, ARA Editores, 2015
ALPA, El contrato en general, Principios y problemas, Prologo de Juan Espinoza Espinoza, Insitituo Pacifio, 2015
ALPA, La responsabilidad civil. Parte general, traducion Cesar Moreno More, Legales,