M. Roongtaweechai and F. Tilokskulchai, “Effects of Positioning Based on Clinical NursingPractice Guideline on Oxygen Saturation, Heart Rate,Respiration Rate and Duration of Weaning MechanicalVentilation in Preterm Infants”, ์Nurs Sci J Thail, vol. 29, no. 2, pp. 56–64, Jun. 2011.