Weinberg, Steven, 1933-
Dreams of a final theory
Pantheon Books, 1992
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Harris, Edward G.
Introduction to modern physical theory; Vol.2
John Wiley & Sons, 1975
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Pathria, R.K.
The Theory of relativity
Hindustan, 1974
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Einstein, Albert, 1879-1955
Relativity : the special and the general theory
Routledge, 2014
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Einstein, Albert, 1879-1955
Relativity : the special and the general theory
Methuen , 1954
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