Txadar hizkuntzak: berrikuspenen arteko aldeak

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*Newman, Paul (1978) ''Chado-Hamitic 'adieu': new thoughts on Chadic language classification'', in Fronzaroli, Pelio (ed.), Atti del Secondo Congresso Internazionale di Linguistica Camito-Semitica. Florence: Instituto de Linguistica e di Lingue Orientali, Universita di Firenze, 389–397.

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*Schuh, Russell (2003) ''Chadic overview'', in M. Lionel Bender, Gabor Takacs, and David L. Appleyard (eds.), ''Selected Comparative-Historical Afrasian Linguistic Sudies in Memory of Igor M. Diakonoff'', LINCOM Europa, 55–60.