Service, Robert
Cambridge : Massachusetts Harvard University Press, 2003
Buku Teks
Deutscher, Isaac
Oxford University Press, 1967
Buku Teks
Syemenov, Yuliyan
Moskwa: Moskovskii Raboci, 1975
Buku Teks
Moskwa: Moskovskogo Universiteta, 1971
Buku Teks
Bruhat, Jean
Djakarta Pustaka Rakjat 1954
Buku Teks