CIA -The World Factbook 2000
Microsoft® Encarta® Encyclopedia 2000
Encyclopedia Britannica, © 1999-2000 Britannica.com Inc.
Website of the United Nations Statistics Division; Copyright © United Nations 1998. All rights reserved
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International Constitutional Law (ICL), © 1994 – July 4, 2000, University of Wuerzburg,
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Part of the Ethnologue, 13th Edition, Barbara F. Grimes, Editor.Copyright © 1996, Summer Institute of Linguistics, Inc.
The Singapore 2000 Yearbook, Pages 44&45
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Website of Perry-Castañeda Library, Map Collection, The University of Texas at Austin