McDonald, Stephen L.
Petroleum conservation in the United States an economicanalysis / Stephen L. McDonald
The Johns Hopkins Press, 1971
 Buku Teks
The U.S.A. answers : a guide to understanding / edited, Kenneth E. Beer
U.S. and World Publications, Inc., 1961
 Buku Teks
Slavery in narrative of the life of Frederick Douglas by himslef
 Artikel Jurnal
Devitto, Don
Irrational markets and the illusian of prosperity
Glenlake , 2001
 Buku Teks
Mashudi
The significance of city planning in the U.S. : 1860-1940
Program Pascasarjana Universitas Indonesia, 1990
 UI - Tesis Membership