Afra

[, другое название: Usku]

Классификация: Isolate

·

близок к исчезновению

  • Orang Usku di daerah batas Timur, Senggi, Irian Jaya ( pp. 23 ) . Dumatubun, A. E. and Teddy K. Wanane (ca 1989) · Jayapura: s.n.

  • Draft Survey Report on the Usku Language of Papua . Youn-Shim Im and Randy Lebold (2006) ·

  • The J.~C.~Anceaux collection of wordlists of Irian Jaya languages B: Non-Austronesian (Papuan) languages (Part I) . Smits, L. and Voorhoeve, C. L. (1994) · Irian Jaya Source Material No.~9 Series B · Vol. 3 · Leiden-Jakarta: DSALCUL/IRIS

  • Miscellaneous Notes on Languages in West Irian, New Guinea ( pp. 47-114 ) . C. L. Voorhoeve (1971) · In Papers in New Guinea Linguistics 14 Pacific Linguistics: Series A · Vol. 28 · Canberra: Research School of Pacific and Asian Studies, Australian National University

  • Language isolates in the New Guinea region . Harald Hammarström (2017) · In Language isolates edited by Lyle Campbell, Thomas Dougherty, and Alexander D. Smith · London: Routledge