Valentini, Manuela, Mariachiara Mancini, Gaetano Raiola, and Ario Federici. 2019. “Digital and Non-Verbal Communication in Preschool: A Systematic Review”. Journal of Human Sport and Exercise 14 (4proc):S997-S1016. https://doi.org/10.14198/jhse.2019.14.Proc4.62.