^Lihat TEU art 3(1) 'Matlamat Kesatuan adalah untuk menggalakkan keamanan, nilainya dan kesejahteraan rakyatnya.' (3) '... dan harus menggalakkan keadilan dan perlindungan sosial...'
^Lihat TEU perkara 3(3) 'Ia harus bekerja untuk pembangunan lestari Eropah berdasarkan pertumbuhan ekonomi terimbang dan kestabilan harga, ekonomi pasaran sosial yang bersaing tinggi, menyasarkan guna tenaga penuh dan kemajuan sosial, dan tahap tinggi perlindungan dan penambahbaiian mutu alam sekitar'. Art 4(3) 'Pursuant to the principle of sincere cooperation, the Union and the Member States shall, in full mutual respect, assist each other in carrying out tasks which flow from the Treaties'.
Barnard, Catherine (2013). The substantive law of the EU : the four freedoms (ed. 4th). Oxford University Press. ISBN9780199670765. (later editions are available)
Craig, Paul; de Búrca, Gráinne (2011). The evolution of EU Law (ed. 2nd). Oxford University Press. ISBN9780199592968. (later editions are available)
Craig, Paul; de Búrca, Gráinne (2015). EU Law: Text, Cases, and Materials (ed. 6th). Oxford University Press. ISBN9780198714927. (later editions are available)
Hartley, Trevor (2014). The foundations of European Union law : an introduction to the constitutional and administrative law of European Union. Oxford University Press. ISBN9780198734673.