Khanitwittaya, S. (2015) “Chiangrai and Phayao Hospital Laboratory Improvement by ‘Thailand Medical Technology Standard : 2001’ in the year 2003”, Journal of Associated Medical Sciences, 38(1), p. 8. available at: https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60191 (accessed: 14 September 2026).