foreign references
- Hamilton . J . Wandering in North Africa . London . 1856 .
- Goodchid. R,” A Coin – Hoard from ( Balagrae ) El – Beida , and the Earthquake of A.D 365 ” In: Libyan studiesed par. Reynolds .I. London .1976
- Goodchid. R, ”Mapping roman Libya”. In : Libyan studiesed par. Reynolds .I. London1976 . Goodchid. R,”The Roman and Byzantine Limes in Cyrenaica” In: Libyan studiesed par. Reynolds .I. London .1976
- Goodchid . R, Goodchid. R,”Synesius of Cyrene : Bishop of Ptolemais ” In: Libyan studiesed par. Reynolds .I. London .1976 . PP 2239- 254 . . p250
- Goodchid, R.” Libyan Forts in south-west Cyrenaica”. In : Libyan studies (Ed. J. Reynolds. London1976
- Goodchid. R . Libya Antica , III-V 1966- 1967. PP203- 204
- Goodchid. R,” A Coin – Hoard from ( Balagrae ) El – Beida , and the Earthquake of A.D 365 ” In: Libyan studiesed par. Reynolds .I. London .1976
- Kraeling , C. H, Ptolemais city of the liban Pentapolis .Chicago;1962.
- Moftah.A.SAAD . L approvisionnement en eau de la Cyrenique a l époque Romaine .These de doctoratunversite de Sorbomme . Paris .2006 .Non puble . p 180 .
- Pausanias II . 26,9
- Stucchi, S. ArchitetturaCirenaica, l’Erma, Roma 1975. Pp . 190- 210 .
- Wright .G.R.H . Architectural Details form the Askleion at Balagrae (Beida ) ” In: Libyan studies. Vol.23. 1992 . pp45- 72