Here are a few resources for learning Chadian Arabic.
Lexique (dictionnaire) arabe tchadien — français, 11th edition, 2021 (PDF file - 1.2 Mb)
An Android App of this edition of the Lexicon which includes English definitions is available to download from the Google Play Store at this link: https://play.google.com/store/apps/details?id=org.sil.shu.arabe.tchadien.lexique.dictionnaire.lift
Let’s speak English - Nikallumu Ingliizi (PDF file - 3.6 Mb)
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