Gusti, T. E., D. Tamtomo, and B. Murti. “Determinants of Midwife Performance on Antenatal Care in Surakarta and Karanganyar, Central Java”. Journal of Health Policy and Management, vol. 3, no. 1, July 2018, pp. 11-19, http://www.thejhpm.com/index.php/thejhpm/article/view/49.