Charoensin, C., R. Srichai, and K. Saeheng. “Nursing Workforce Analysis and comparison in the Non-Invasive Cardiac Diagnostic Units: Calculation Using Full Time Equivalents (FTEs)”. Thammasat University Hospital Journal Online, vol. 10, no. 3, Nov. 2025, pp. 233-45, https://he02.tci-thaijo.org/index.php/TUHJ/article/view/275063.