I'saka
[aka Isaka, Krisa]Classification: Sko
·severely endangered
Classification: Sko
·severely endangered
I'saka: a sketch grammar of a language of north-central New Guinea . Donohue, Mark and Lila San Roque (2004) · Pacific Linguistics · Research School of Pacific and Asian Studies, Australian National University
Ethnologue: Languages of the World, 18th Edition . (2015) · edited by Lewis, M. Paul, Gary F. Simons, and Charles D. Fennig · SIL International http://www.ethnologue.com
Sepik languages: checklist and preliminary classification . Laycock, Donald C. (1973) · Pacific Linguistics · edited by Wurm, Stephen A. · Australian National University, Research School of Pacific Studies, Department of Linguistics
Glottolog 2.3 . Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Nordhoff, Sebastian (2014) · http://glottolog.org