Holmberg, Börge,, 1924-
Theory and practice of distance education
/ Borje Holmberg
. - 2nd ed
. - London : Routledge, 1999
. - XI, 246 p
. - (Routledge studies in distance education )
ISBN 0-415-11292-3.
Ensino à distância Práticas educativas
CDU 37.018.4