Jao, P.-Y., N. Y.-C. Liu, H.-L. Wu, C.-H. Chou, and K.-C. Lin. “The Relationship Between Apache Ii Score And Nurses’ Occupational Stress In Icu”. European Scientific Journal, ESJ, Vol. 17, no. 29, Aug. 2021, p. 19, doi:10.19044/esj.2021.v17n29p19.