Bernal-Ruiz, C., Ángel Rosa-Alcázar, and V. González-Calatayud. “Development and Validation of the WhatsApp Negative Impact Scale (WANIS)”. Anales De Psicología / Annals of Psychology, Vol. 35, no. 2, Apr. 2019, pp. 242-50, doi:10.6018/analesps.35.2.356791.