Promkaew, O., Chantasan, J., Kaewbungrueang , C. and Somya, J. 2022. Knowledge and Perceptions on Dementia in Middle-Age Adults for Elderly Preparation: A Case Study in Ban Pho Sa-nga, Tha Pho Subdistrict, Det Udom District, Ubon Ratchathani Province. Journal of the Office of Disease Prevention and Control 9 Nakhon Ratchasima. 28, 3 (Sep. 2022), 71–77.