Somjit, K., Pukrittayakamee, P. , Sriveerachai, P., Chanthong, P. and Wannarit, K. 2023. Validity and reliability of the Thai version of the Prolonged Grief Disorder-13-Revised scale (Thai PG-13-R) in bereaved relatives. Journal of the Psychiatric Association of Thailand. 68, 1 (Mar. 2023).