Estudios del Migration Policy Institute.

• Natalia Banulescu-Bogdan, "Shaping Citizenship Policies to Strengthen Immigrant Integration"
• Patrick Simon, French National Identity and Integration: Who Belongs to the National Community?.
• Anne Nielsen, Jeanne Batalova, "Naturalization Trends in the United States".
• Shamit Saggar y Will Somerville, “Building a British Model of Integration in an Era of Immigracion: Policy Lessons for Government” (Se analiza el modelo británico de integración). 
• Cas Mudde, "The Relationship Between Immigration and Nativism in Europe and North America”.
• Eric Leise, "Germany Strives to Integrate Immigrants with New Policies".
• Greta Gilbertson, "Citizenship in a Globalized World".
• Jeanne Batalova and Michelle Mittelstadt, "Relief from Deportation: Demographic Profile of the DREAMers Potentially Eligible under the Deferred Action Policy". 
• Dovelyn Rannveig Agunias, "Regulating Private Recruitment in the Asia-Middle East Labour Migration Corridor".
• Madeleine Sumption and Sarah Flamm, The Economic Value of Citizenship for Immigrants in the United States, (11.09.2012).

Más estudios:

• Publications Migration Policy Institute.
• Migration Information Source.