シカゴで夫が教えてくれた旅の流儀…京子スペクターさん [Kyoko Spector - Travel style she learned from her husband in Chicago]. Yomiuri Online (in Japanese). Japan: The Yomiuri Shimbun. 9 May 2012. Archived from the original on 26 July 2013. Retrieved 26 July 2013.
"1954". McGill University. Retrieved March 21, 2015.
msn.com
sankei.jp.msn.com
放送プロデューサー、デーブ・スペクターさん [Broadcasting producer Dave Spector]. MSN Sankei News (in Japanese). Japan: The Sankei Shimbun & Sankei Digital. 17 November 2012. Archived from the original on 30 March 2013. Retrieved 30 May 2016.
"Loading..."Tokyograph.com. Retrieved 16 August 2018.
web.archive.org
放送プロデューサー、デーブ・スペクターさん [Broadcasting producer Dave Spector]. MSN Sankei News (in Japanese). Japan: The Sankei Shimbun & Sankei Digital. 17 November 2012. Archived from the original on 30 March 2013. Retrieved 30 May 2016.
yomiuri.co.jp
シカゴで夫が教えてくれた旅の流儀…京子スペクターさん [Kyoko Spector - Travel style she learned from her husband in Chicago]. Yomiuri Online (in Japanese). Japan: The Yomiuri Shimbun. 9 May 2012. Archived from the original on 26 July 2013. Retrieved 26 July 2013.