Paijit Pawan และ Thammasak Rujirayanyong. (2019) Contingency Estimation based on Risk Events of Tunnel Construction: Case study Nam Thuen 1 Hydropower Project. Rangsit University:ม.ป.ท.Paijit Pawan และ Thammasak Rujirayanyong. 2019. Contingency Estimation based on Risk Events of Tunnel Construction: Case study Nam Thuen 1 Hydropower Project. ม.ป.ท.:Rangsit University;Paijit Pawan และ Thammasak Rujirayanyong. Contingency Estimation based on Risk Events of Tunnel Construction: Case study Nam Thuen 1 Hydropower Project. ม.ป.ท.:Rangsit University, 2019. Print.