Suthipong, N., U. Intarakamhang, and N. Peungposop. “A confirmatory factors analysis of health promotion behavior among elderly at risks with ischemic heart disease”. Thai Journal of Cardio-Thoracic Nursing, vol. 31, no. 2, Feb. 2021, pp. 222-33, https://he02.tci-thaijo.org/index.php/journalthaicvtnurse/article/view/241937.