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- International Telecommunication Union ,ITU
- http://www.itu.int
- The Asia-Pacific Telecommunity ,APT
- http://www.aptsec.org/
- Telecommunications Technology Association (Korea) ,TTA
- http://www.tta.or.kr/English/
- The Arthur C Clarke Institute for Modern Technologies
(SriLanka) ,ACCIMT
- http://www.accimt.ac.lk/
- The United States ITU Association (USA) ,USITUA
- http://www.usitua.org
- 駐日欧州委員会代表部
- http://www.deljpn.ec.europa.eu/
- Asia-Pacific Economic Cooperation ,APEC
- http://www.apec.org/
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