Maleng (Mã Liềng); Kha Pakatan; Malang; Arem/Harème (Rivière 1902).[4] Sub-varieties include Kha Muong Ben and Kha Bo (Fraisse 1950).[5]
Ma Lieng, also known as Pa Leng (Đặng Nghiêm Vạn et al. 1986)[6]
Kha Phong (formerly an exonym, but now also used as an autonym); Maleng Kari; Maleng Bro. Also known as Kha Nam Om (Fraisse 1949).[7] The Kha Phong live in 2 to 3 villages in Laos, and in one village in Ha Tinh province, Vietnam. Strongly influenced by Lao. Maleng Bro was documented by Michel Ferlus in 1992 (see Ferlus 1997[8]), and also by the 2012-2013 Russian-Vietnamese Linguistic Expedition.
^Pakatan at Ethnologue (18th ed., 2015) (subscription required) Bo at Ethnologue (18th ed., 2015) (subscription required)
^ abcBabaev, Kirill; Samarina, Irina (2021). Sidwell, Paul (ed.). A Grammar of May: An Austroasiatic Language of Vietnam. Brill. p. 12. ISBN978-9-00446-108-6.
^Rivière, Capitaine M. 1902. Vocabulaires Hang-Tcheh, Khas Xos, Harème. Mission Pavie, Géographie et voyages. IV. Paris: Ernest Leroux.
^Fraisse, André. 1950. Les tribus Sèk et Kha de la province de Cammon (Laos). Bulletin de la Société des études indochinoises 25.3:333–348.
^Đặng Nghiêm Vạn, Chu Thái Sơn, Lưu Hùng. 1986. Les ethnies minoritaires du Vietnam. Hanoi: Editions en langues étrangères.
^Fraisse, André. 1949. Une civilisation de clairière au Laos: le Cammon. Annales de Géographie 58.310:158–161.
^Ferlus, Michel. 1997. Le maleng brô et le vietnamien. Mon-Khmer Studies 27:55–66.
^Babaev, Kirill Vladimirovich [Бабаев, Кирилл Владимирович]; Samarina, Irina Vladimirovna [Самарина, Ирина Владимировна]. 2019. Язык май. Материалы Российско-вьетнамской лингвистической экспедиции / Jazyk maj. Materialy Rossijsko-vetnamskoj lingvisticheskoj ekspeditsii. Moscow: Издательский Дом ЯСК. ISBN978-5-907117-34-1. (in Russian). p.16.