Wattanakikrileart, D., L. Jarusombat, P. Chaiyakul, and V. Pratumsri. “Effects of a Self-Management Program on Perceived Self-Efficacy to Control Dyspnea and Exercise Tolerance in Patients With Chronic Obstructive Pulmonary Disease”. Nursing Research and Innovation Journal, vol. 21, no. 3, Mar. 2016, pp. 352-67, https://he02.tci-thaijo.org/index.php/RNJ/article/view/49723.