Sirikarn Lertamphainont และ Saipin Cintakulchai. (2009) The economic impacts of FDI productivity spillover :. Faculty of Economics, Thammasat University,:ม.ป.ท.Sirikarn Lertamphainont และ Saipin Cintakulchai. 2009. The economic impacts of FDI productivity spillover :. ม.ป.ท.:Faculty of Economics, Thammasat University,;Sirikarn Lertamphainont และ Saipin Cintakulchai. The economic impacts of FDI productivity spillover :. ม.ป.ท.:Faculty of Economics, Thammasat University, 2009. Print.