Bibliography

http://www.bwfbadminton.org/ http://en.wikipedia.org/wiki/Badminton http://www.badmintonthai.or.th/new_site/ http://www.badmintoncentral.com/forums/forum.php?s=63b5921ca515de5ebdb844762d959357 http://www.muids.mahidol.ac.th/(some picture)