Kullapat Theerarangsarit และ Chanat Ratanasumawong. (2014) Gear Design for Reducing Power Loss. Thai Society of Mechanical Engineers:ม.ป.ท.Kullapat Theerarangsarit และ Chanat Ratanasumawong. 2014. Gear Design for Reducing Power Loss. ม.ป.ท.:Thai Society of Mechanical Engineers;Kullapat Theerarangsarit และ Chanat Ratanasumawong. Gear Design for Reducing Power Loss. ม.ป.ท.:Thai Society of Mechanical Engineers, 2014. Print.