Pongjit, W., C. Wannapornsiri, and I. Kositanurit. “The effect of perceived self-efficacy promoting program on self-efficacy perception and success weaning ventilator in surgical patients”. NU Journal of Nursing and Health Sciences, vol. 14, no. 2, Aug. 2020, pp. 73-85, https://he01.tci-thaijo.org/index.php/NurseNu/article/view/240682.