Amran, Y., D. Dachlia, B. utomo, and R. Damayanti. “CONTRACEPTIVE SWITCHING PATTERN AMONG MARRIED WOMEN IN EAST JAVA”. Proceedings of the International Conference on Public Health, vol. 3, no. 2, Dec. 2017, pp. 260-8, https://tiikmpublishing.com/proceedings/index.php/icoph/article/view/127.