Moelyo, Annang Giri, Anindita Wulandari, Oktania Imas, Ulfa Puspita Rahma, Nurul Hidayah, Cempaka Kesumaningtyas, Fadhilah Tia Nur, and Hari Wahyu Nugroho. 2019. “Age at Menarche and Early Menarche Among Healthy Adolescents”. Paediatrica Indonesiana 59 (1):33-7. https://doi.org/10.14238/pi59.1.2019.33-7.