VUGHT, Frans van (ur.), 2009, Mapping the higher education landscape : towards a European classification of higher education [na spletu]. 2009. Dordrecht : Springer. [Dostopano 28 marec 2025]. ISBN 978-90-481-2249-3. Pridobljeno s: http://dx.doi.org/10.1007/978-90-481-2249-3
