Doctor Who: Land of the Dead Doctor Who: The Apocalypse Element Doctor Who: The Wormery The Company of Friends
Bernice Summerfield: Lost Gods of the Underworld
  Bernice Summerfield: The Plague Herds of Excelis Bernice Summerfield: The Relics of Jegg Sau Bernice Summerfield: Dance of the Dead
Audio plays and original novels based on the BBC TV series, published by Big Finish.

You can find details of more recent Doctor Who books written by Stephen Cole here
 
part of stevecoleworks.net :: showcasing works by author Stephen Cole and Steve Cole  (c) 2007-2010