Sudjiati, E., and R. T. S. Hariyati. “Efektifitas Penggunaan Teknologi Early Warning Scoring Sytem (EWSS) Dalam Keperawatan”. JURNAL ONLINE KEPERAWATAN INDONESIA, vol. 2, no. 2, Dec. 2019, pp. 34-39, http://114.7.97.221/index.php/Keperawatan/article/view/892.