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Rossiter, Clinton (1962). "Powers of the United States President and Congress". Pakistan Horizon. Pakistan Institute of International Affairs. 15 (2): 85–92. JSTOR 41392704.
Schaller, Thomas F.; Williams, Thomas W. (2003). "'The Contemporary Presidency': Postpresidential Influence in the Postmodern Era". Presidential Studies Quarterly. Center for Congressional and Presidential Studies. 33 (1): 188–200. JSTOR 27552468.
Shugart, Matthew S. (2004). "Elections': The American Process of Selecting a President: A Comparative Perspective". Presidential Studies Quarterly. Center for Congressional and Presidential Studies. 34 (3): 632–655. doi:10.1111/j.1741-5705.2004.00216.x. JSTOR 27552617.
Skau, George H. (1974). "Franklin D. Roosevelt and the Expansion of Presidential Power". Current History. University of California Press. 66 (394): 246–275. doi:10.1525/curh.1974.66.394.246. JSTOR 45313079. S2CID 248394036.
Presidential biographies

Ambrose, Stephen E. (2000) [1999]. "Eisenhower, Dwight David". American National Biography. Oxford University Press. doi:10.1093/anb/9780198606697.article.0700094. ISBN 978-0-19-860669-7. Retrieved May 14, 2022.
Ambrosius, Lloyd E. (2000) [1999]. "Wilson, Woodrow". American National Biography. Oxford University Press. doi:10.1093/anb/9780198606697.article.0600726. ISBN 978-0-19-860669-7. Retrieved May 14, 2022.
Ammon, Harry (2000) [1999]. "Monroe, James". American National Biography. Oxford University Press. doi:10.1093/anb/9780198606697.article.0300338. ISBN 978-0-19-860669-7. Retrieved May 14, 2022.
Anbinder, Tyler (2000) [1999]. "Fillmore, Millard". American National Biography. Oxford University Press. doi:10.1093/anb/9780198606697.article.0400374. ISBN 978-0-19-860669-7. Retrieved May 14, 2022.
Banning, Lance (2000) [1999]. "Madison, James". 