Yuttapun Jumphon และผู้แต่งคนอื่นๆ. (2014) Thermal Efficiency Improvement in High Vacuum Heater for Oil Refinery Industry. Thai Society of Mechanical Engineers:ม.ป.ท.Yuttapun Jumphon และผู้แต่งคนอื่นๆ. 2014. Thermal Efficiency Improvement in High Vacuum Heater for Oil Refinery Industry. ม.ป.ท.:Thai Society of Mechanical Engineers;Yuttapun Jumphon และผู้แต่งคนอื่นๆ. Thermal Efficiency Improvement in High Vacuum Heater for Oil Refinery Industry. ม.ป.ท.:Thai Society of Mechanical Engineers, 2014. Print.