Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·

Northern Songhay languages in Mali and Niger: a sociolinguistic survey ( pp. 35 ) . Rueck, Michael J. and Christiansen, Niels (2001) · SIL electronic survey reports (SILESR), #1999-008 · SIL International http://www.sil.org/silesr/1999/008/nsonghay.pdf

Grammatical borrowing in Tasawaq ( pp. 75-90 ) . Kossmann, Maarten G. (2007) · In Grammatical borrowing in cross-linguistic perspective edited by Matras, Yaron and Sakel, Jeanette · Mouton de Gruyter

Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/

The borrowing of aspects as lexical tone classes: y-initial Tuareg verbs in Tasawaq (Northern Songhay) . Maarten Kossmann (2007) · Studies in African linguistics. 2 (36) ·

Report on Agádéz by Dr Barth [communicated through the Chevalier Bunsen, by Lord Palmerston] ( pp. 137-221 ) . Barth, Heinrich (1851) · Journal of the Royal Geographical Soc. of London. 21