The Unesco Press, 1974
Buku Teks
editor, Patrick Griffin, Barry McGaw, Esther Care
Springer, 2012
eBooks
Harasim, Linda, 1949-, author
Routledge, Taylor & Francis Group, 2017
Buku Teks
Sanders, Ethan S., author
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Juliet Sprake
Sense, 2012
eBooks