Ria, M. B., U. R. Budihastuti, and A. Sudiyanto. “Risk Factors of Postpartum Depression at Dr. Moewardi Hospital, Surakarta”. Journal of Maternal and Child Health, vol. 3, no. 1, Feb. 2018, pp. 81-90, http://www.thejmch.com/index.php/thejmch/article/view/82.