Einstein, Albert, 1879-1955, author
Pustaka Azet, 1987
Buku Teks
Dirac, P. A. M.
John Wiley & Sons, 1975
Buku Teks
Buchdahl, H.A., author
John Wiley & Sons, 1981
Buku Teks
Weinberg, Steven, 1933-, author
John Wiley & Sons, 1972
Buku Teks
Wald, Robert M., author
University of Chicago Press, 1984
Buku Teks