S. Piyawattanapong, M. Leethong-in, S. Thiengtham, S. Sommongkol, T. Phetcharat, and S. Kaewkot, “The Relationship between Knowledge, Attitude, and Practices of Nursing staffs on Post-operative Delirium in the Elderly”, SRIMEDJ, vol. 34, no. 3, pp. 281–288, May 2019.