Singer, Natasha (2023年4月5日). “For Lower-Income Students, Big Tech Internships Can Be Hard to Get” (英語). The New York Times. https://www.nytimes.com/2023/04/05/business/tech-internship-application-grind.html2023年8月9日閲覧. "To gear up for the assessments, many students practice their skills on LeetCode, a free test prep site that offers coding and algorithmic problems, along with detailed solutions. The site also offers premium services. For $35 a month, it gives members access to specific problems that companies like Amazon, Google and Microsoft previously used — and some continue to use — to assess applicants. To keep the questions up-to-date, the test prep service said, it regularly surveys members applying for tech positions."