Kittiban, K., A. Cheevakasemsook, and C. Phuangsomjit. “Occupational fatigue management in professional nurses at Phra Nakhon Si Ayutthaya hospital”. Thai Journal of Cardio-Thoracic Nursing, vol. 32, no. 1, Aug. 2021, pp. 121-36, https://he02.tci-thaijo.org/index.php/journalthaicvtnurse/article/view/243445.