Kronkasem, A., D. Wattanakitkrileart, K. Pongthavornkamol, and A. Kanoksin. “Fatigue Experience, Symptom Management Strategies, and Functional Status in Patients With Congestive Heart Failure”. Nursing Science Journal of Thailand, vol. 32, no. 4, Jan. 2015, pp. 35-42, https://he02.tci-thaijo.org/index.php/ns/article/view/28516.