Rolim, J. H. de L., and R. M. L. Júnior. “An Investigation of the Possibility of Assessing General Language Proficiency and Reading Proficiency in English As a Foreign Language through Scrambled-Lettered Texts”. BELT - Brazilian English Language Teaching Journal, vol. 9, no. 2, Jan. 2019, pp. 508-34, doi:10.15448/2178-3640.2018.2.32996.