HENDERSON, D. F. Founding Principles of American Government: Two Hundred Years of Democracy on Trial. by George J. Graham Jr. and Scarlett G. Graham. Indiana Magazine of History, [S. l.], 1978. Disponível em: https://scholarworks.iu.edu/journals/index.php/imh/article/view/10101. Acesso em: 15 mar. 2025.