Noviyanti, Berliana, Harry C Simanjuntak, Eka Samuel P Hutasoit, Hendrika A Silitonga, and Endy Julianto. 2019. “The Relationship Between Social Economic Levels and Anemia Events in Pregnant Women in Glugur Darat Health Center”. Journal of Maternal and Child Health 4 (6):440-47. http://thejmch.com/index.php/thejmch/article/view/272.