rus
rut
ruu
ruy
ruz
rwa
rwk
rwm
rwo
rwr
rxd
rxw
ryn
rys
ryu
rzh
saa
sab
sac
sad
sae
saf
sag
sah
saj
sak
sam
san
sao
saq
sar
sas
sat
sau
sav
saw
sax
say
saz
sba
sbb
sbc
sbd
sbe
sbf
sbg
sbh
sbi
sbj
sbk
ISO 639-3