Choquet-Bruhat, Yvonne. Introduction to General Relativity, Black Holes, and Cosmology. First edition, Oxford University Press, 2015, http://ezproxy.library.qmul.ac.uk/login?url=http://www.vlebooks.com/vleweb/product/openreader?id=QMUL&isbn=9780191644528&uid=^u.
D’Inverno, R.A. Introducing Einstein’s Relativity. Clarendon Press, 1992.
Faber, Richard L. Differential Geometry and Relativity Theory: An Introduction. M. Dekker, 1983.
Rindler, Wolfgang. Relativity: Special, General, and Cosmological. 2nd ed, Oxford University Press, 2006, http://www.loc.gov/catdir/toc/fy0611/2006277893.html.
Woodhouse, N. M. J. General Relativity. Springer, 2007, http://www.loc.gov/catdir/toc/fy0705/2006926445.html.
