Khamma, Anuphong. “Risk Factors Associated With Suicide :A Case - Control Study in Sukhothai Province”. Journal of the Psychiatric Association of Thailand 58, no. 1 (May 7, 2013): 3–16. Accessed May 6, 2024. https://he01.tci-thaijo.org/index.php/JPAT/article/view/8239.