Pratoomtone, P. “Types and Frequency of Laboratory Errors in Sawanpracharak Hospital, Nakornsawan Province: One Year After Laboratory Accreditation”. Journal of Associated Medical Sciences, vol. 43, no. 1, Jan. 2010, p. 70, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60065.