1. Original site: http://www.phy.ntnu.edu.tw/oldjava/
  2. forum version : http://www.phy.ntnu.edu.tw/ntnujava/index.php
  3. Chinese : forum discussion / applet only
  4. Korean: http://www.phy.ntnu.edu.tw/java/index_kr.html
  5. Dutch: http://www.phy.ntnu.edu.tw/java/dutchjava/index.html
  6. Japanese: http://www.phy.ntnu.edu.tw/java/japanese/index.html
  7. Holland: http://www.phy.ntnu.edu.tw/java/holland/index.html
  8. Portuguese: http://www.phy.ntnu.edu.tw/java/portuguese/index.html
  9. Spanish version:
  10. http://teleformacion.edu.aytolacoruna.es/FISICA/document/applets/Hwang/ntnujava/indexH.html
  11. (old www.edu.aytolacoruna.es/aula/fisica/applets/Hwang/ntnujava/indexH.html
  12. [url=http://www.phy.ntnu.edu.tw/java/slovokia/]SLOVAKIA version of applets[/url]