PUTRIŪTĖ, V. Links between Learning Load and Physical Activity in The Upper Grades. Laisvalaikio tyrimai, [S. l.], v. 1, n. 3, 2018. DOI: 10.33607/elt.v1i3.206. Disponível em: https://journals.lsu.lt/laisvalaikio-tyrimai/article/view/206. Acesso em: 22 jan. 2022.