StraighterLine(英语:StraighterLine) 塞勒基金会(英语:TheSaylorFoundation) LearnStreet W3Schools(页面存档备份,存于互联网档案馆) By The Numbers: MOOCS in 2015 — Class Central. [2016-08-28]
(原始内容存档于2015-05-10). Mortimer 2004,第59頁 Saylor, James H.; Sloss, Peter W. Water Volume Transport and Oscillatory Current Flow through the Straits of Mackinac (PDF)
Technology). [2013-03-24]. (原始内容存档于2013-04-20). Saylor, Ryan. Technology aids Cherokee language re-emergence. The City Wire. 2013-03-07 [2013-03-24]. (原始内容存档于2015-10-22)