Carmo, A. J., J. P. da C. Neves, C. M. M. Silva, G. N. Barão, and V. F. da Silva. “GAME IN SCHOOL PHYSICAL EDUCATION AS ALLY TO THE PRACTICE OF MENTAL ELEMENTARY MATHEMATICAL CALCULATIONS”. Fiep Bulletin - Online, vol. 80, July 2011, https://fiepbulletin.net/fiepbulletin/article/view/990.