Challenges facing nurses' associations and unions a global perspective
 Artikel Jurnal
The Rise of China: Challenges and Opportunities for Indonesia and ASEAN
 Artikel Jurnal
Fik, Timothy J.
The geography of economic development : regional changes, global challenges / Timothy J. Fik
McGraw-Hill , 2000
 Buku Teks
Global change and challenge : geography for the 1990s / edited, Robert Bennet
Routledge, 1991
 Buku Teks
Climate change and human mobility: global challenges to the social sciences
edited by Kirsten Hastrup and Karen Fog Olwig
Cambridge University Press, 2012
 Buku Teks