Residents in the tribal areas - Khmer. Situated in the Austro Asiatic language has two sub-groups is endemic, or c Kamal Kamal. And Sideswipe resident sprite or sprites and two local groups are different in language and traditions of the settlement and dress like the resident immigrants in the 60-80 years. by refugees from Laos into Thailand Xaignabouli northeast of the province. Residents living in the province of Phetchabun and Loei.