xby
xcb
xcc
xce
xcg
xch
xcl
xcm
xcn
xco
xcr
xct
xcu
xcv
xcw
xcy
xda
xdc
xdk
xdm
xdo
xdy
xeb
xed
xeg
xel
xem
xep
xer
xes
xet
xeu
xfa
xga
xgb
xgd
xgf
xgg
xgi
xgl
xgm
xgr
xgu
xgw
xha
xhc
xhd
xhe
xho
xhr
ISO 639-3