URLs

• http://ja.wikipedia.org/wiki/紺野直幸
• https://www.allcinema.net/person/132613
• https://anidb.net/creator/2954
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=1222
• http://www7.atwiki.jp/anime_wiki/pages/3753.html
• http://www18.atwiki.jp/sakuga/pages/726.html