Rianti, Dia. “Correlation in an Anxiety and Cortisol Level About Premenstrual Syndrom Incident”. Jurnal Midwifery 1, no. 2 (Oktober 25, 2019). Diakses Mei 7, 2025. https://arsip-journal.uin-alauddin.ac.id/index.php/jmidwifery/article/view/10517.