Mardiyah, U. F., and M. Jamaluddin. “The Effectiveness Of Guided Imagery Relaxation Therapy In Reducing Anxiety Levels In Pre-Operative Patients In The Marwah Inpatient Ward, Bakti Timah Hospital, Pangkalpinang”. International Journal of Health Engineering and Technology, vol. 5, no. 2, July 2026, doi:10.55227/ijhet.v5i2.1000.