Soviet Documents on Foreign policy
Oxford University Press, 1951
 Buku Teks
The Europa year book 1929 : an annual survey of economic and social conditions / edited by Michael Farbman
Europa Publications LTD, 1929
 Buku Teks
Gourou, Pierre
The tropical world : its social and economic conditions and its future status / Pierre Gourou; translated, E.D. Laborde
Longmans, Green and Co., 1954
 Buku Teks
Jones, Antoinette M. Barrett
Early tenth century Java from the inscriptions : a study of economic, social, and administrative conditions in the first quarter of the century
Foris Publications, 1984
 Buku Teks
Dallin, David J.
Soviet Russian's foreign policy 1939-1942
Yale University Press, 1942
 Buku Teks