Association for Educational and Training Technology; editor, C. W. Osborne
Kaogan Page, 1994
Buku Referensi
Christoph Herrmann
Springer, 2012
eBooks
Michael N. Schmitt, Louise Arimatsu
T.M.C. Asser Press, 2012
eBooks
edited by Dennis Campbell
Graham & Trotman, 1990
Buku Referensi
edited by Frantisek Sedlacek and Christine Waiblinger-Jens
Prestel, 1996
Buku Referensi