Żak, Jan, Fred Wendorf, J. Desmond Clark, Achilles Gautier, John A. Alexander, Abbas S. Mohammed-Ali, Margherita Mussi, u. a. Origin and Early Development of Food-Producing Cultures in North-Eastern Africa. Herausgegeben von Lech Krzyżaniak und Michał Kobusiewicz. Studies in African Archaeology 1. Heidelberg: Propylaeum, 2017. Zugegriffen Mai 6, 2024. https://books.ub.uni-heidelberg.de/propylaeum/catalog/book/288.