Beatriz Regina Pereira Saeta VBHSR. Motivation Instrument First-Testing On Brazilian´S Rugby Players. Int. j. soc. sci. humanit. invent. [Internet]. 2014 Oct. 6 [cited 2024 Sep. 26];1(7). Available from: http://valleyinternational.net/index.php/theijsshi/article/view/47