Thongsri, P., ratrawee pattanarattanamolee, and P. Puttalaka. “Incidence of Suicidal Attempts at Emergency Department Khon Kaen Hospital During the COVID-19 Pandemic”. Srinagarind Medical Journal, vol. 37, no. 2, Apr. 2022, pp. 146-53, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/253543.