Ruhayati, Ratih. “The Relationship Of Pregnant Women’s Knowledge And Attitude To The Implementation Of Delivery Planning And Complication Prevention (P4k) Program”. KESANS : International Journal of Health and Science 1, no. 1 (October 30, 2021): 13–21. Accessed February 12, 2026. https://www.kesans.rifainstitute.com/index.php/kesans/article/view/4.