Tanaka, Elder Koei Itikawa, et al. “Communicative Competence Update of Public School EFL Teachers in Santarém-PA: An Account of Experience in a University Extension Project”. BELT - Brazilian English Language Teaching Journal, vol. 9, no. 1, Sept. 2018, pp. 4-16, doi:10.15448/2178-3640.2018.1.31104.