Vongsheree, S., Aromsuk, S., Chainarongkuekul, P., & Kejonnit, A. (2018). Lower frequency of certain nonconformities against ISO/IEC 17025 after many year accreditation. Journal of Associated Medical Sciences, 51(1), 19–25. Retrieved from https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/91330