ទំព័រគំរូ:ISO 639-3 footer

  • "ISO 639-2 Registration Authority". Library of Congress.
  • "ISO 639-3 Registration Authority". SIL International.
  • Lewis, M. Paul, រៀ. (2009). Ethnologue: Languages of the World (16th រ.រ.). Dallas, Texas: SIL International. http://www.ethnologue.com/. 
កែប្រែ