https://www.itmedia.co.jp/mobile/articles/2412/26/news177.html#smartnews_mobile

https://young-machine.com/brand/2024/12/18/605099/

https://buzzap.jp/news/20241226-soumu-1yen-smartphone-price-regulation-iphone-android-before-and-after/

https://www.goo-net.com/magazine/carmaintenance/parts/247027/

https://www.bcnretail.com/news/detail/20241220_478238.html

https://buzzap.jp/news/20241225-iphone16-docomo-au-softbank-under-20000yen/