Machado, P. C., and C. L. B. Matzenauer. “Spanish As a Second Language: A Preliminary Study of Brazilian Learners’ Perception of Intonational Contour on Wh- and Yes/ No Questions”. Revista De Estudos Da Linguagem, vol. 31, no. 1, Oct. 2024, pp. 305-43, doi:10.17851/2237-2083.31.1.305-343.