KOTLARSKI, Kazimierz. Ability level of eight from school children and their physical development . Anthropological Review, Poland, v. 50, n. 2, p. 243–252, 1984. DOI: 10.18778/1898-6773.50.2.03. Disponível em: https://www.czasopisma.uni.lodz.pl/ar/article/view/19059. Acesso em: 9 aug. 2026.