Vogt, Volrath (1879). Det hellige Land. Kristiania: Malling. s. 590.
tertullian.org
Eusebius (oversetter C. Umhau Wolf) (1971). «Concerning The Place Names In Sacred Scripture» (på engelsk). «(Now) a city beyond Arabia adjoining the desert of the Saracens [who wander in the desert] through which the children of Israel went moving (camp) from Sinai. Located (we say) beyond Arabia on the south, three days journey to the east of Aila (in the desert Pharan) where Scripture affirms Ismael dwelled, whence the Ishmaelites. It is said (we read) also that (king) Chodollagomor cut to pieces those in 'Pharan which is in the desert'.»
al_Sam`ni, Abd Al-Karim (1912) [1140 e.Kr.]. Kitab al-Ansab: The book of surnames (på arabisk). London. OCLC459336183. Arkivert fra originalenBruk av |arkiv_url= krever at |url= også er angitt (hjelp) Mars 2000.