Galliazzo 1995, p. 92; Warren 1991, pp. 61–63 Galliazzo, Vittorio (1995), I ponti romani, vol. 1, Treviso: Edizioni Canova, pp. 92, 93 (fig. 39), ISBN88-85066-66-6 Warren, John (1991), "Creswell's Use of the Theory of Dating by the Acuteness of the Pointed Arches in Early Muslim Architecture", Muqarnas, vol. 8, Brill, pp. 59–65, doi:10.2307/1523154, JSTOR1523154
Warren 1991, pp. 61–63 Warren, John (1991), "Creswell's Use of the Theory of Dating by the Acuteness of the Pointed Arches in Early Muslim Architecture", Muqarnas, vol. 8, Brill, pp. 59–65, doi:10.2307/1523154, JSTOR1523154
Galliazzo 1995, p. 92; Warren 1991, pp. 61–63 Galliazzo, Vittorio (1995), I ponti romani, vol. 1, Treviso: Edizioni Canova, pp. 92, 93 (fig. 39), ISBN88-85066-66-6 Warren, John (1991), "Creswell's Use of the Theory of Dating by the Acuteness of the Pointed Arches in Early Muslim Architecture", Muqarnas, vol. 8, Brill, pp. 59–65, doi:10.2307/1523154, JSTOR1523154
Warren 1991, pp. 61–63 Warren, John (1991), "Creswell's Use of the Theory of Dating by the Acuteness of the Pointed Arches in Early Muslim Architecture", Muqarnas, vol. 8, Brill, pp. 59–65, doi:10.2307/1523154, JSTOR1523154