Military Channel (Discovery Network) documentary series Rome: Power and Glory, episode "The Grasp of an Empire", copyright unknown, rebroadcast 11-12:00 hrs EDST, 2009-06-29.
Truy cập ngày 9 tháng 3 năm 2011.  Text finalised in March 2004 - Eurostat. ^ Military Channel (Discovery Network) documentary series Rome: Power and Glory, episode "The Grasp of an Empire", copyright unknown, rebroadcast 11-12:00 hrs EDST, 2009-06-29.