Ringo, Magda Siringo, Indra Hizkia P, and Asri Sani Situmorang. “Pelaksanaan Prosedur Code Blue Pertolongan Pertama Gawat Darurat Pada Henti Jantung Di Rumah Sakit Santa Elisabeth Medan Tahun 2025”. Journal of Innovative and Creativity (Joecy) 6, no. 1 (February 5, 2026): 8969–8975. Accessed October 12, 2026. https://joecy.org/index.php/joecy/article/view/8097.