Madrau, Salvatore. “Preliminary Observations on the Pedological Characteristics of an Area Inside the Faiyûm Depression in Egypt”. Geografia Fisica e Dinamica Quaternaria 16, no. 2 (December 31, 1993): 153–157. Accessed September 30, 2025. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/695.