Alternate Names: Bru Tri
Dialects: Leun (Kaleu, Leung), Tri (Chali, So Tri, So Trii). Partially intelligible with Western Bru , of Thailand. The Mangkong dialect in Viet Nam and eastern Laos is a dialect of Eastern Bru, different linguistically from the Mangkong that are the same as So , of Thailand. Mangkong is also an ethnic group.
Genealogy:
Demographics: 26,700 in Laos (2005 census). Population total all countries: 82,300.
Language Use: Also use Lao [lao].
Language Development: Literacy rate in L1: 1%–5%. Literacy rate in L2: 15%–25%. Radio programs. Dictionary. NT: 1981–2009.
Writing System: Lao, Latin, Thai
Nation of Origin: Laos
Other Comments: Traditional religion.