Uvarov, E.B
Penguin Books, 1976
Buku Teks
Uvarov, E.B., author
Penguin, 1978
Buku Referensi
editor in chief, Charles A. Ford
Encyclopedia Britannica Educational Corporation, 1969
Buku Referensi
edited by R.N. Chopra
Anmol Publications, 1992
Buku Referensi
Reitz, Joan M., author
Libraries Unlimited, 2004
Buku Referensi