MARZEC, Alicja Małgorzata; ORŁOWSKA, Izabela; PLUTA, Agnieszka. The level of sexual education - problem of middle school students. Journal of Education, Health and Sport, [S. l.], v. 7, n. 6, p. 470–479, 2017. Disponível em: https://apcz.umk.pl/JEHS/article/view/4570. Acesso em: 25 jan. 2025.