"International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Archived from the original on 13 January 2016. Retrieved 21 November 2015.
"Home" (in Japanese). Oyama Town. Retrieved 31 December 2015.
web.archive.org
"International Exchange". List of Affiliation Partners within Prefectures. Council of Local Authorities for International Relations (CLAIR). Archived from the original on 13 January 2016. Retrieved 21 November 2015.