Widiastini LP, Karuniadi IGAM. The Effect of Health Education about Menstruation on Psychological Readiness of Pre-Adolescent Girls in Facing Menarche. sjik [Internet]. 2019 Nov. 19 [cited 2025 Sep. 15];8(2):69-73. Available from: https://sjik.org/index.php/sjik/article/view/216