Hutauruk, Dawson, et al. “Relationship of Knowledge And Attitude of Nurses With Quality Of Nursing Care In RSUD Tarutung”. Science Midwifery, vol. 10, no. 1, October, Sept. 2021, pp. 85-91, https://midwifery.iocspublisher.org/index.php/midwifery/article/view/158.