Santos, Saray Giovana dos, Lenamar Fiorese Vieira, Walter Kazunori Babata, Celso Takeshi Ogawa, and Osvaldo Yoshio Umeda. 2008. “Study about the Aplication of judo’s Principles in Their Learning”. Journal of Physical Education 1 (1). https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/4071.