Yorke, M., & Longden, B. (2004). Retention and student success in higher education. Society for Research into Higher Education & Open University Press.
Chicago-viite (17. p.)Yorke, Mantz, ja Bernard Longden. Retention and Student Success in Higher Education. Maidenhead, [Eng.]: Society for Research into Higher Education & Open University Press, 2004.
MLA-viite (9. p.)Yorke, Mantz, ja Bernard Longden. Retention and Student Success in Higher Education. Society for Research into Higher Education & Open University Press, 2004.
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