Marie Alexandrine Martin: Cambodia: A Shattered Society, S. 52 f., University of California Press, 1994, ISBN 0-5200-7052-6 (Online-Version)
William J. Rust: Eisenhower and Cambodia: Diplomacy, Covert Action, and the Origins of the Second Indochina War, University Press of Kentucky, 2016, ISBN 0-8131-6745-0 (Online-Version)
Ronald Bruce Frankum, Jr.: Elbridge Durbrow’s War in Vietnam: The Ambassador’s Influence on American Involvement, 1957-1961, S. 25 f., 43 f., McFarland, 2019, ISBN 1-4766-7775-1 (Online-Version)
Kenton Clymer: The United States and Cambodia, 1969-2000: A Troubled Relationship, Routledge, 2013, ISBN 1-1343-4156-3 (Online-Version)
Lien-Hang T. Nguyen: Hanoi’s War: An International History of the War for Peace in Vietnam, S. 354, University of North Carolina Press, 2012, ISBN 0-8078-8269-0 (Online-Version)