Kongsuk, Thoranin, Suwanna Arunpongpaisal, Supachai Janthong, Benjamas Prukkanone, Supattra Sukhawaha, and Jintana Leejongpermpoon. “Criterion-Related Validity of the 9 Questions Depression Rating Scale Revised for Thai Central Dialect”. Journal of the Psychiatric Association of Thailand 63, no. 4 (December 26, 2018): 321-334. Accessed April 21, 2019. https://www.tci-thaijo.org/index.php/JPAT/article/view/162939.