ŻAK, Jan u. a. Origin and early development of food-producing cultures in North-Eastern Africa. Heidelberg: Propylaeum,2017. DOI: 10.11588/propylaeum.288.384. Disponível em: https://books.ub.uni-heidelberg.de/propylaeum/catalog/book/288.. Acesso em: 6 mai. 2024.