https://twitter.com/gumma_kisaragi
https://twitter.com/intent/user?user_id=210844163
http://doujinshi.mugimugi.org/browse/author/1590/Kisaragi-Gunma/
http://www.mangaupdates.com/authors.html?id=1844
http://ja.wikipedia.org/wiki/如月群真
https://www.animenewsnetwork.com/encyclopedia/people.php?id=71739