https://www.blurb.com/user/arthurshelby?profile_preview=true
https://www.crunchbase.com/organization/arthurshelby
https://www.accountingweb.co.uk/profile/arthurshelby00
http://contek.com.ua/user/arthurshelby/
https://arthurshelby.rajce.idnes.cz/profil/informace
https://sites.google.