Kadsanit, K., P. Malathum, and S. Monkong. “Health Status of Centenarians: A Case Study of Khon Kaen Province”. Nursing Research and Innovation Journal, vol. 26, no. 1, May 2020, pp. 74-89, https://he02.tci-thaijo.org/index.php/RNJ/article/view/194789.