Sukchan, Phnom, Waenurama Chemoh, and Kolip Payanglee. “Morbidity and Multi-Morbidity Among the Elderly Population in Southernmost Thailand: Cox Proportional Hazards Regression Model of Survival Approach”. Princess of Naradhiwas University Journal 12, no. 1 (November 19, 2019): 89–105. Accessed May 3, 2024. https://li01.tci-thaijo.org/index.php/pnujr/article/view/213939.