Thanya Nutthawutthisit และ Waressara Weerawat. (2013) Material handling system in hospital: simulation case study pneumatic tube system. Mahidol University:ม.ป.ท.Thanya Nutthawutthisit และ Waressara Weerawat. 2013. Material handling system in hospital: simulation case study pneumatic tube system. ม.ป.ท.:Mahidol University;Thanya Nutthawutthisit และ Waressara Weerawat. Material handling system in hospital: simulation case study pneumatic tube system. ม.ป.ท.:Mahidol University, 2013. Print.