Information from: “Ethnologue: Languages of the World, 18th Edition” . Lewis, M. Paul, Gary F. Simons, and Charles D. Fennig · SIL International
20 percent certain, based on the evidence available
10,000 in Indonesia (1987 SIL); 8,000 in Papua New Guinea (1981).
DATE OF INFO
Scripts (Writing system)
Indonesia; Papua New Guinea
In Indonesia: "Papua Province, northeast of Nakai [nkj] language area, Ok Sibil, Ok Tsop, and perhaps Ok Bon valleys, main range border area north of Muyu [kts] (Yongkom) and Morop [iwo] language areas." In Papua New Guinea: "Sandaun Province."
Information from: “Glottolog 2.3” . Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Nordhoff, Sebastian (2014)
Information from: “Languages of Irian Jaya, Checklist: preliminary classification, language maps, wordlists” . Voorhoeve, C. L. (1975) Canberra: Research School of Pacific and Asian Studies, Australian National University
Papua Province: Ngalum dialect is spoken in the Nanggul River valley; Sibil dialect is spoken in the Ok Sibil Valley; Apmisibil dialect is spoken near the Apmisibil Mission station.