Ponrut Phunpae และผู้แต่งคนอื่นๆ. (2018) Bacterial contamination and their tolerance in banknotes and coins surrounding the area of Chiang Mai University Hospital in Chiang Mai Province. <i>Journal of Associated Medical Sciences</i>, <i>51</i>(3), 171-179.Ponrut Phunpae และผู้แต่งคนอื่นๆ. "Bacterial contamination and their tolerance in banknotes and coins surrounding the area of Chiang Mai University Hospital in Chiang Mai Province". Journal of Associated Medical Sciences 51 (2018):171-179.Ponrut Phunpae และผู้แต่งคนอื่นๆ. Bacterial contamination and their tolerance in banknotes and coins surrounding the area of Chiang Mai University Hospital in Chiang Mai Province. Faculty of Associated Medical Sciences, Chiang Mai University:ม.ป.ท. 2018.