Hidayat, Meilinah, Komang RP Wardani, Bertha M Purba, and Rendhy T Apreza. “Blood Calcium Level and Its Correlation With Calcium Daily Intake, Calcium Supplementation &Amp; Clinical Symptoms in Women With Premenstrual Syndrome”. Journal of Medicine and Health 1, no. 6 (August 31, 2017). Accessed December 19, 2024. http://114.7.153.31/index.php/jmh/article/view/556.