The menarcheal age of school-aged female athletes in the light of their social and environmental background. Sport i Turystyka Środkowoeuropejskie Czasopismo Naukowe, [S. l.], v. 6, n. 2, p. 77–94, 2023. DOI: 10.16926/sit.2023.02.05. Disponível em: https://czasopisma.ujd.edu.pl/index.php/sport/article/view/1850. Acesso em: 21 sep. 2026.