World resources : a guide to the global environment
Allen L. Hammond [and others]
Oxford University Press , 1996
 Buku Teks
Cleaver, Tony
Understanding the world economy: global issues shaping the future
Routledge, 1997
 Buku Teks
Mansbach, Richard W.
The global puzzle: Issues and actors in world politics
Houghton Miffiln, 2000
 Buku Teks SO
Payne, Richard J., 1949-
Global issues
Pearson Education , 2014
 Buku Teks
Essential readings in contemporary waqf issues
Monzer Kahf, Siti Mashitoh Mahamood, editor
CERT Publications Sdn. Bhd, 2011
 Buku Teks