Jun, Jong S.
Tomorrow's organization : challenges and strategies
Scott, Foresman, 1973
Buku Teks
Thinking ahead : Unesco and the challenges of today and tomorrow / United Nations
United Nations, 1977
Buku Teks
Mohd. Yusof Hassan
Najib Tun Razak: 100 days of challenges / writers, Mohd. Yusof Hassan, Shamsudin Puteh
Malaysia, 2009
Buku Referensi
Challenges to Democracy at The Local: Journal of Power, Conflict and Democracy in South & Southeast Asia
PCD Press, 2017
Majalah, Jurnal, Buletin
Scheffran, Jurgen, editor
Climate change, human security and violent conflict : challenges for societal stability
Springer, 2012
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