V. F. R. de Oliveira, M. E. dos S. Ribeiro, and O. da C. Mendes, “TEACHERS’ UNIONISM IN REGRASSION TIMES: THE PARTICIPATION IN WORKERS’ UNION IN PUBLIC EDUCATION OF THE STATE OF PARÁ, SUB HEADQUARTER CASTANHAL”, IA, vol. 45, no. 2, pp. 515–530, Dec. 2020.