Burhan, S., K. A. Erika, and S. Said. “EFEKTIFITAS RELAKSASI OTOT PROGRESIF DALAM MENURUNKAN KECEMASAN: TINJAUAN LITERATUR: The Effectiveness of Progressive Muscle Relaxation in Reducing Anxiety: A Literature Review”. Jurnal Ilmiah Keperawatan (Scientific Journal of Nursing), vol. 8, no. 1, Feb. 2022, pp. 33-40, doi:10.33023/jikep.v8i1.802.