Johar, Syefira Ayudia. “Knowledge Relations of Midwives To The Handling of Corona Virus Infection (Covid-19) on Maternity Mothers in Hospital X”. STRADA Jurnal Ilmiah Kesehatan, vol. 9, no. 1, May 2020, pp. 297-02, doi:10.30994/sjik.v9i1.324.