R. Ningsih, Ricca Nophia Amra, and R. S. Rambe, “The Relationship between Knowledge and Attitudes of Pregnant Women Regarding Danger Signs of Pregnancy and the Use of Maternal and Child Health (KIA) Books in the UPTD Working Area of Longkib Health Center Subulussalam City 2024”, MIHHICo, vol. 4, no. 1, pp. 178–182, Jul. 2024.