1. Center for the Promotion of Excellence in Higher Education, Kyoto Unibersity: What is a Hybrid Class?, CONNECT. http://www.highedu.kyoto-u.ac.jp/connect/en/teachingonline/hybrid.html. Accessed 24 Jan 2023
2. Kwansei Gakuin University: Class Policies for the AY2022 Spring Semester, Kwansei Gakuin University. https://global.kwansei.ac.jp/AY2022/classes.html). Accessed 24 Jan 2023
3. National Federation of University Co-operative Associations: Let's Deliver: Survey on Life as a University Student of the Corona Disaster Aggregate Result Report, National Federation of University Co-operative Associations. https://www.univcoop.or.jp/covid19/survey/pdf/pdf_report2208.pdf. Accessed 24 Jan 2023 (in Japanese)
4. edX: About MOOCs, MOOC.org. https://www.mooc.org/about-moocs. Accessed 13 Dec 2023
5. Faculty of Engineering, The University of Tokyo: Faculty of Metaverse Engineering Main Website,The University of Tokyo. https://www.t.u-tokyo.ac.jp/meta-school. Accessed 24 Jan 2023 (in Japanese)