Soeli, Yuniar Mansye, et al. “Preceptor’s Anxiety In Performing Supervision and Supervision of Nursing Students in Practices During the Covid-19 Pandemic”. Jurnal Keperawatan, vol. 14, no. S2, June 2022, pp. 427-30, https://journal2.stikeskendal.ac.id/index.php/keperawatan/article/view/314.