Cambodians

found: The world factbook, via WWW, Nov. 26, 2019(under Cambodia: Nationality: noun: Cambodian(s). Ethnic groups: Khmer 97.6%, Cham 1.2%, Chinese 0.1%, Vietnamese 0.1%, other 0.9%)

found: Southeast Asia : a historical encyclopedia, from Angkor Wat to East Timor, ©2004(Khmers; the predominant ethnolinguistic group inhabiting Cambodia; the Khmer people)

found: Lebar, F.M. Ethnic groups of mainland Southeast Asia, ©1964:p. 98 (Khmer. Synonym: Cambodian; the term Khmer refers to the ancient as well as the present dominant ethnic population of Cambodia; a national of the country may be called a Cambodian, although this term also includes groups that may be ethnically distinct from the Khmer; ethnic Khmer extend somewhat beyond the boundaries of Cambodia, particularly into southeastern Thailand and the Mekong delta in South Vietnam)

found: Worldmark encyclopedia of cultures and daily life, ©2009:v. 3, pp. 495-496 (Khmer. Alternate names: Cambodians; approximately 90% of the Cambodian population is ethnic Khmer; between 500,000 and 700,000 Khmer live in southern Vietnam; another quarter-to half-million live in Thailand)

found: Native peoples of the world, ©2013:v. 1, p. 195 (Cambodians (also known as Khmer) reside primarily in the Southeast Asian nation of Cambodia)