Brito, Edvan P. “The Variation of Obligatory Preposition-Article Contractions in the Interlanguage of Adult Learners of Portuguese”. Revista do GEL 15, no. 3 (dezembro 31, 2018): 241–256. Acessado dezembro 22, 2024. https://revistadogel.emnuvens.com.br/rg/article/view/2390.