Garrison, D. R. (D. Randy), 1945-
E-learning in the 21st century : a community of inquiry framework for research and practice
Routledge, 2017
Buku Teks
European integration in the 21st Century: unity in diversity?
Sage Publications, 2012
eBooks
Tan, Oon-Seng
Problem-based learning innovation: using problems to power learning in the 21st century / oon-Seng Tan
Thomson Learning, 2003
Buku Teks
Ward, Ralph D.
21st century corporate board
John Wiley & Sons, 1997
Buku Teks
Nugent William R.
Practice Evaluation for the 21st Century
Thomson Learning, 2001
Buku Teks