Ammar, Ulya Rohima. “The Risk Effect of Primary Dysmenorrhea on Women of Childbearing Age in Ploso Subdistrict of Tambaksari Surabaya”. Jurnal Berkala Epidemiologi 4, no. 1 (November 11, 2016): 37–49. Accessed November 23, 2024. https://e-journal.unair.ac.id/JBE/article/view/2118.