Lutfi, B. et al. 2022. 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. 22, 1 (Jul. 2022), 15–22. DOI:https://doi.org/10.36465/jkbth.v22i1.894.