1. Implementing quality control in HDD projects – a North American prospective;Allouche;Tunnelling and Underground Space Technology,2002
2. Modeling of annular fluid pressures in horizontal boring;Ariaratnam;Tunnelling and Underground Space Technology,2007
3. ASTM, 2005. Standard Guide for use of Maxi-Horizontal Directional Drilling for Placement of Polyethylene Pipe or Conduit under Obstacles, Including River Crossings. F1962, West Conshohocken, PA.
4. Horizontal Directional Drilling – Utility and Pipeline Applications;David,2005
5. David, B.R., Ariaratnam, S.T., 2008. Horizontal Directional Drilling Good Practices Guidelines – 2008, third ed. HDD Consortium.