Boonyaprasert, Udomporn, and Komsan Kiatrungrit. 2021. “Validity and Reliability of the Thai Internet Gaming Disorder Scale 9-Item (IGD Scale-9 TH) in Adolescents in the Psychiatry Out-Patient Unit”. Journal of the Psychiatric Association of Thailand 66 (3):243-60. https://he01.tci-thaijo.org/index.php/JPAT/article/view/247354.