1. Structural equation modeling for service quality of provincial contractors in construction projects
Grit Ngowtanasuwan

2. Time-dependent behavior of maha sarakham salt under true triaxial stress state
Supattra khamrat and Kittitep Fuenkajorn

3. Performance comparison between 2 and 3 impeller blades of the axial flow pump by screw axle technique
Manop Pipathattakul, Songtam Laosuwan, Makorn Lakkana, Surachai Chungchatupornchai, Manus Sriswat and Witoon Obrom

4. Piping material specification preparation aided system
Pannapa Prommajan and Oran Kittithreerapronchai

5. Risk management in after sales service of air compressor system
Paweena Kusontipcharoen and Oran Kittithreerapronchai