Bernal-Ruiz, Cristina, Ángel Rosa-Alcázar, and Víctor González-Calatayud. 2019. “Development and Validation of the WhatsApp Negative Impact Scale (WANIS)”. Anales De Psicología / Annals of Psychology 35 (2), 242-50. https://doi.org/10.6018/analesps.35.2.356791.