Bibliography
Bibliography of Vitality:
Roger Blench and John Garah Nengel. 2004. "Notes On the Seni People and Language with An Addendum On the Ziriya." In Ogmios Newsletter, 12-13. Online: http://www.ogmios.org/ogmios/Ogmios_024.pdf.
Bibliography of Locations:
Gabriele Sommer. 1992. "A Survey On Language Death in Africa." In Language death: factual and theoretical explorations with special reference to East Africa, edited by Matthias Brenzinger. 402. Mouton de Gruyter.
Bibliography of Context:
Roger Blench and John Garah Nengel. 2004. "Notes On the Seni People and Language with An Addendum On the Ziriya." In Ogmios Newsletter, 12-13. Online: http://www.ogmios.org/ogmios/Ogmios_024.pdf.