Amalia, Rizki, et al. “Effect of Covid-19 Pandemic on The Tendency of Stress in Pregnant Woman in South Kalimantan”. BULLET : Jurnal Multidisiplin Ilmu, vol. 1, no. 03, July 2022, pp. 309-13, https://www.journal.mediapublikasi.id/index.php/bullet/article/view/224.