Lutfi, Baharudin, et al. “The Effectiveness of Expressive Writing Therapy Approach to Anxiety Level in Patients With Pre-Surgery”. Jurnal Kesehatan Bakti Tunas Husada: Jurnal Ilmu-Ilmu Keperawatan, Analis Kesehatan Dan Farmasi, vol. 22, no. 1, July 2022, pp. 15-22, doi:10.36465/jkbth.v22i1.894.