Belda Torrijos, M. y Galstyan Sargsyan, R. 2022. Triadic relationship: ser, estar and haber in the use of Spanish by foreign students through a methodology based on the principles of corpus linguistics. Onomázein . 58 (dic. 2022), 69–79. DOI:https://doi.org/10.7764/onomazein.58.04.