Duan language

Duan
Halang Doan
Native to	Laos, Vietnam
Native speakers	unknown (4,400 cited 1981)[1]
Language family	Austroasiatic Bahnaric North (unclassified) Duan
Language codes
ISO 639-3	hld
Glottolog	hala1253[2]

Duan, or Halang Doan, is a language spoken by more than four thousand people on either side of the Laotian–Vietnamese border. There are some 2,346 speakers in Attopu Province, Laos, and another couple of thousand in Kon Tum Province, Vietnam. It is too poorly known to classify completely and may be mutually intelligible with Takua, Kayong, Halang, and Rengao.

References

1. Duan at Ethnologue (18th ed., 2015)
2. Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2013). "Halang Doan". Glottolog. Leipzig: Max Planck Institute for Evolutionary Anthropology.

Further Reading

Mole, Robert L. (1968) Peoples of Tribes of South Vietnam. vol. 1. Chapter 9.