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↑ Hensley-Clancy, Molly. “Trump Picks Betsy DeVos As Education Secretary”. Buzzfeed. https://www.buzzfeed.com/mollyhensleyclancy/trump-announces-betsy-devos-as-education-secretary 2016年11月23日閲覧。
↑ “米教育長官指名のデボス氏、上院で承認否決の可能性”. jp.reuters.com. http://jp.reuters.com/article/usa-trump-devos-idJPKBN15G3HP?feedType=RSS&feedName=topNews&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+reuters%2FJPTopNews+(News+%2F+JP+%2F+Top+News) Feburaryr 8, 2017閲覧。
↑ LEIGH ANN CALDWELL (Febrary 8, 2017).
1 2 (English) Blackwater: The Rise of the World's Most Powerful Mercenary Army.. PublicAffairs. (2008). p. 560. ISBN 9781568583945
↑ Scahill, Jeremy (2008). Blackwater: The Rise of the World's Most Powerful Mercenary Arm. Nation Books. ASIN B0097CYTYA.Prince, Erik (2014). Civilian Warriors: The Inside Story of Blackwater and the Unsung Heroes of the War on Terror. Portfolio. ISBN 978-1-59184-745-8.
↑ “Interview with Betsy DeVos, the Reformer”. .philanthropyroundtable (2013年). 2017年5月4日閲覧。
↑ Mark Tower (2016年12月16日). “DeVos family political giving nears $10 million prior to 2016 election”.