pasethakung, wanwisa, and N. . Phutthikhamin. “Effect of Preparatory Information Provision Program on Anxiety in the Patients Undergoing Brain Tumor Surgery”. The Journal of Thailand Nursing and Midwifery Council, vol. 36, no. 04, Sept. 2021, pp. 80-93, https://he02.tci-thaijo.org/index.php/TJONC/article/view/250718.