Amir, Anzela, Ratna Dewi Puspita Sari, Winda Trijayanthi Utama, and Khairun Nisa Berawi. “The Relationship Between Sleep Quality and Physical Activity With Menstrual Cycles in Adolescent Girls at SMAN 5 Bandar Lampung”. Medical Profession Journal of Lampung 14, no. 3 (February 15, 2024): 469-475. Accessed November 8, 2025. http://www.journalofmedula.com/index.php/medula/article/view/1003.