Sesunan, A. S., S. H. Respati, and S. Sulistyowati. “Maternal Mortality in Klaten Regency (Determinant Factors Analysis)”. Journal of Maternal and Child Health, vol. 6, no. 2, Mar. 2021, pp. 183-96, https://thejmch.com/index.php/thejmch/article/view/568.