Anuphan Kitnitchiva. (2009) Major factors affecting the implementation and effectiveness of the R&D tax incentive policy. National Institute of Development Administration:ม.ป.ท.Anuphan Kitnitchiva. 2009. Major factors affecting the implementation and effectiveness of the R&D tax incentive policy. ม.ป.ท.:National Institute of Development Administration;Anuphan Kitnitchiva. Major factors affecting the implementation and effectiveness of the R&D tax incentive policy. ม.ป.ท.:National Institute of Development Administration, 2009. Print.