1. Abdel‐Hafiz, Ahmed Sokarno (1988). “A Reference Grammar of Kunuz Nubian”. State University of New York at Buffalo Dissertation.
2. Aboh, Enoch O., Felix K. Ameka, and James Essegbey (2006). “Moving from verbs to prepositions in Gbe (West Africa)”, in Cuyckens et al. (eds), 55–68.
3. Clarendon Aristotle Series: Categories and De Interpretatione
4. Adamou, Evangelia (2005). “En našta”, in Clairis et al. (eds), 171–82.