Wongchanapai, W., Surintaraj, S., Uiprasertkul, W., & Thamtakerngkit, S. (2006). Detection of Methamphetamine in Urine Stains. Siriraj Medical Journal, 58(3), 705–710. retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/245724