Archaeology: The Romano-British Period (页面存档备份,存于互联网档案馆), A History of the County of Middlesex: Volume 1: Physique, Archaeology, Domesday, Ecclesiastical Organization, The Jews, Religious Houses, Education of Working Classes to 1870, Private Education from Sixteenth Century (1969), pp. 64-74. Date accessed: 22 July 2008.
Archaeology: The Romano-British Period (页面存档备份,存于互联网档案馆), A History of the County of Middlesex: Volume 1: Physique, Archaeology, Domesday, Ecclesiastical Organization, The Jews, Religious Houses, Education of Working Classes to 1870, Private Education from Sixteenth Century (1969), pp. 64-74. Date accessed: 22 July 2008.