Pongchitsiri S. (2018) “Prevalence and Predicting Factors of Depression among Elderly in Primary Care Unit, Chachoengsao Province”, Journal of The Department of Medical Services, 43(5), pp. 81–86. Available at: https://he02.tci-thaijo.org/index.php/JDMS/article/view/247780 (Accessed: 19 March 2024).