URLs

• https://www.pixiv.net/users/1421419
• https://www.pixiv.net/stacc/nishikawatakashi
• https://twitter.com/nishikawatakash
• https://twitter.com/intent/user?user_id=364703125
• https://www.tinami.com/creator/profile/54981
• https://anidb.net/creator/17263
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=62490
• http://www7.atwiki.jp/anime_wiki/pages/8872.html
• http://xs527373.wix.com/takashi-nishikawa
• https://takashinishikawa.wixsite.com/takashi-nishikawa