kkr.scuderia-okinawa.com/ (Yomitan Speedway)
scuderia-okinawa.com/kukuru/Jr.kart/Jrtop.html (Jr. Racing School Okinawa)
www.ocvb.or.jp/card/en/0110929100.html (Ikei Island Circuit)
www.us-autosales.com (Official Sponsor of Kart 96)