Educational Technology , 1974
Buku Teks
edited by Keith Cameron
Blackwell, 1989
Buku Teks
Levy, Michael, 1950-, author
Oxford University Press, 2004
Buku Teks
Stuper, Andrew J., author
John Wiley & Sons, 19779
Buku Teks
edited by Katherine Blashki, Pedro Isaias
Information Science Reference, 2014
Buku Teks