Techatraisak, Kitirat, Chaiyakit Udnan, Kongkiat Chabbang, Dittakarn Boriboonhirunsarn, and Manee Piya-Anant. 2007. “Pregnancy Outcomes in Methamphetamine Abuse Mothers”. Siriraj Medical Journal 59 (6):290-93. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246161.