URLs

• https://twitter.com/isk_ms
• https://twitter.com/intent/user?user_id=130823792
• https://www.mangaupdates.com/author/o6b19h1
• https://en.wikipedia.org/wiki/Masayuki_Ishikawa
• https://ja.wikipedia.org/wiki/石川雅之
• https://anidb.net/creator/8982
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=65421
• http://mmmasayuki.cocolog-nifty.com/blog/
• https://myanimelist.net/people/4522
• http://mmmasayuki.la.coocan.jp
• http://homepage2.nifty.com/mmmasayuki/