Siqueira, Thomaz Décio Abdalla, e Raquel Siqueira de Carvalho Vieira. 2013. “Demotivation and Leavin Early: A Study in a Population of Adolescent Female Swimming in Manaus”. Revista De Psicologia Da IMED 5 (2): 121-25. https://doi.org/10.18256/2175-5027/psico-imed.v5n2p121-125.