Reviews in American History
Baltimore : Johns Hopkins University Press
 Majalah, Jurnal, Buletin
Brooks, Wyck van
Our Literary Heritage : a pictorial history of the writer in America
E.P. Dutton, 1956
 Buku Teks SO
Education in the United States of America
Washington U.S. Department of Health, Education, and Welfare 1955
 Buku Teks
Mott, Frank Luther
Golden multitudes the story of best sellers in the United States by
New York The MacMillan Company 1947
 Buku Teks
Harahap, Ashagi
First our school, next is our daughter: perjuangan National Association for the Advancement of Colored People (NAACP) dalam proses integrasi di Little Rock Central High School di Arkansas, 1957-1959
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
 UI - Skripsi Open