Moscow: Novosti Press, 1977,
Buku Referensi
Zvorykin, A.A., author
UNESCO, 1977
Buku Teks
Hayek, F.A
Routledge & Kegan Paul, 1973
Buku Teks
Glezerman, Grigory
Progress Publishers, 1971
Buku Teks
editor-in-chief M.V. Keldysh
Progress Publishers, [date of publication not identified]
Buku Teks