Roxas และผู้แต่งคนอื่นๆ. 2007. Forecasting inaccuracies in transportation projects in selected South East Asian countries. Field of Study Civil Engineering, Chulalongkorn University;
Roxas และผู้แต่งคนอื่นๆ. (2007) Forecasting inaccuracies in transportation projects in selected South East Asian countries . Chulalongkorn University/Bangkok.
Roxas และผู้แต่งคนอื่นๆ. Forecasting inaccuracies in transportation projects in selected South East Asian countries. . Bangkok:Chulalongkorn University, 2007.
Roxas และผู้แต่งคนอื่นๆ. (2007) Forecasting inaccuracies in transportation projects in selected South East Asian countries . Chulalongkorn University/Bangkok.