Lecture notes.
Lecture slides and other information will be available at https://sites.google.com/a/uniroma1.it/danielaaddessi/insegnamenti.
Books:
The Finite Element Method, 6th ed., Vols. 1, 2. O.C. Zienkiewicz and R.L. Taylor, Elsevier, Oxford, UK, (books.elsevier.com).