Football : Dutch First Division transfers in 2008/2009 season : AZ Set To Part Company With Holman, goal.com, 14 May 2009 "Holman agrees to Villa in the summer". avfc.co.uk.
Truy cập ngày 24 tháng 6 năm 2010.  ^ Football: Dutch First Division transfers in 2008/2009 season ^ AZ Set To Part Company With Holman, Goal.com, 14/5/09 ^ ">“Holman agrees to Villa in the summer”. avfc.co.uk.