Torrijos, Mónica Belda. “Research on Corpus of Learners of Spanish As a Foreign Language”. Journal of Advance Research in Social Science and Humanities (ISSN 2208-2387) 3, no. 3 (March 31, 2017): 01–04. Accessed May 19, 2024. https://nnpub.org/index.php/SSH/article/view/177.