Sukmawati, Sukmawati, et al. “ The Effect of Husband’s Knowledge and Support on Complete Visit for Pregnant Mothers at Sitiung Health Center 1 ”. Science Midwifery, vol. 10, no. 2, May 2022, pp. 1060-4, https://midwifery.iocspublisher.org/index.php/midwifery/article/view/447.