Bessant, John
Management and manufacturing innovation in the united Kingdom and West Germany / John Bessant and Manfred Grunt
Gower , 1985
 Buku Teks SO
Comparative analysis of health care systems in three developed countries: germany,Sweden and the united states
 Artikel Jurnal
Meet United Germany
[edited by] Susan Stern
Frankfurter Allgemeine Zeitung GmbH Informationsdienste, c1991
 Buku Teks SO
Harlow, Ralph Volney
The United States
Holt, Rinehart and Wiston, 1961
 Buku Teks
Harlow, Ralph Volney
The United States
Holt, Rinehart and Wiston, 1961
 Buku Teks