Chia, Siow Yue
ASEAN economic cooperation and integration : progress, challenges and future directions
Cambridge University Press, 2015
 Buku Teks
Future directions in social development
edited by James Midgley, Manohar Pawar
Palgrave Macmillan, 2017
 Buku Teks SO
Tourism in Southeast Asia : challenges and new directions
Michael Hitchcock, Victor T. King, Michael Parnwell
Nias Press, 2009
 Buku Teks
Midwifery and public health: future directions, new opportunities
Elsevier, 2005
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Global environmental database: Present Situation; Future Directions
edited by Ryutaro Tateishi, David Hastings
International society for photogrammetry and remote sensing, , 2000
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