KumalasariMei Lina Fitri. “The Effectiviness of Dysmenorrhea Gymnastics As an Alternative Therapy in Reducing Menstrual Pain”. Journal of Health Science and Prevention 1, no. 1 (April 23, 2017): 10-14. Accessed April 19, 2021. http://jurnalfpk.uinsby.ac.id/index.php/jhsp/article/view/12.