Natalina Mantovani Bertoletti, E., and T. da Silva. “The Use of Graded Reading Series at a Primary School in Mato Grosso Do Sul: Consolidating the Reading Processes in School ”. Brazilian Journal of Pedagogical Studies , Vol. 100, no. 255, Aug. 2019, doi:10.24109/2176-6681.rbep.100i255.4150.