Narongrat Sawattikanon และผู้แต่งคนอื่นๆ. (2019) A prototype of automatic mattress turning device for pressure ulcer prevention Short technical report. <i>Journal of Associated Medical Sciences</i>, <i>52</i>(1), 88-91.Narongrat Sawattikanon และผู้แต่งคนอื่นๆ. "A prototype of automatic mattress turning device for pressure ulcer prevention Short technical report". Journal of Associated Medical Sciences 52 (2019):88-91.Narongrat Sawattikanon และผู้แต่งคนอื่นๆ. A prototype of automatic mattress turning device for pressure ulcer prevention Short technical report. Faculty of Associated Medical Sciences, Chiang Mai University:ม.ป.ท. 2019.