B. . Waladani, P. Yuwono, E. Setianingsih, P. A. . Widyaswara Suwaryo, and Ernawati, “Association Between Anxiety Levels and Demographic Characteristics of ICU Patients’ Family Members: A Cross-Sectional Study”, International Journal of Pharmaceutical and Bio Medical Science, vol. 5, no. 7, pp. 427–430, Jul. 2025.