Sánchez Morillas, C.M. and Valero Fernández, P. 2022. The use of proper and improper interjections by students of Spanish as a foreign language: frequencies of use and values reflected in the CAES corpus. Didáctica. Lengua y Literatura. 34, (Apr. 2022), 137–145. DOI:https://doi.org/10.5209/dill.81360.