https://blog.itokoichi.com/entry/2024/03/09/180000

https://youtu.be/2VbM1b-W7tE?feature=shared

https://smhn.info/202403-foldable-smartphone-market

https://ascii.jp/elem/000/004/188/4188363/

https://kuruma-news.jp/post/752717

https://hinata.me/article/1764342684178401897

https://kakakumag.com/hobby/?id=20603

https://michill.jp/author/column/192047

https://diamond.jp/articles/-/340074