1. Advocacy for Liberal Education. Available at https://www.aacu.org/advocacy-liberal-education-0. Accessed on 12 Nov 2020
2. Association of American Colleges & Universities. What is Liberal Education? Available at https://www.aacu.org/leap/what-is-liberal-education. Accessed on 11 Mar 2019
3. Fallis G (2007) Mutiversities, ideas, and democracy. University of Toronto Press, Toronto, Buffalo, London
4. Huỳnh NP, Chủ nghĩa hiện sinh ở miền Nam Việt Nam 1954–1975 (trên bình diện lý thuyết). Available at http://www.vns.edu.vn/index.php/vi/nghien-cuu/van-hoa-viet-nam/1674-chu-nghia-hien-sinh-o-mien-nam-viet-nam-1954-1975-tren-binh-dien-ly-thuyet. Accessed on 12 Apr 2020
5. Kennedy D (1997) Academic duty. Harvard University Press, Cambridge, MA, London, UK