The Postal Universal Website of R.O.C ─ Stamp House - Pages
File:Stamp of India - 2016 - Colnect 634130 - Badminton.jpeg - Wikimedia Commons
INDONESIA - CIRCA 1964: A stamp printed in Indonesia from the "Thomas Cup World Badminton Championships" issue shows Thomas Cup, circa 1964 Stock Photo - Alamy
File:Stamp of Indonesia - 1973 - Colnect 257447 - Thomas Cup World Badminton Championships.jpeg - Wikimedia Commons