“Relationship of Knowledge Stress, Consumption Patterns and Sport Patterns of PMS (Premenstrual Syndrome) in Adolescent Girls of SMP IT Yayasan Hj. Fauziah Binjai in 2019”. JPK : Jurnal Proteksi Kesehatan, vol. 10, no. 1, May 2021, pp. 6-14, https://doi.org/10.36929/jpk.v10i1.294.