Ferguson, John H.
The American federal goverment
McGraw-Hill, 1961
 Buku Teks SO
Joske, Percy Ernest
Australian federal government
Butterworth, 1967
 Buku Teks SO
Malik Muhammad Irfan
Legal Tender Act 1862: Kebijakan Pemerintah Federal Pada Masa Perang Saudara di Amerika Serikat, 1861-1865 = Legal Tender Act 1862: U.S. Federal Government Policy during the American Civil War of 1861-1865
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2021
 UI - Makalah dan Kertas Kerja
American government
by Susan Welch ... [and others]
Thomson, 2006
 Buku Teks SO
Sayre, Wallace S.
American government
Barnes & Noble, 1964
 Buku Teks SO