Ahsan, A., A. Rohim Tualeka, P. Rahmawati, S. S. Russeng, I. H. Susilowati, and J. jalaludin. “Factors Analysis Affecting Nurse Efficacy in Implementing Resuscitation in Cardiac Arrest Patients”. Opción, Vol. 36, May 2020, pp. 360-75, https://mail.produccioncientificaluz.org/index.php/opcion/article/view/31987.