Tolong jelaskan mengenai Sumber dari Neofungsionalisme

Ernst B Haas: The Uniting of Europe, Stanford 1958

Ben Rosamond: Theories of European Integration (Palgrave Macmillan: Hampshire, 2000)

Wayne Sandholtz and Alec Stone Sweet, eds., European Integration and Supranational Governance (Oxford University Press, 1998)

Alec Stone Sweet, Wayne Sandholtz, and Neil Fligstein, The Institutionalization of Europe (Oxford University Press, 2001)

Alec Stone Sweet, The Judicial Construction of Europe (Oxford University Press, 2004)