Borges, D.S.C. and Marturano, E.M. 2009. Learning how to manage conflicts: an intervention program for the primary school 1st grade . Paidéia (Ribeirão Preto). 19, 42 (Apr. 2009), 17–26. DOI:https://doi.org/10.1590/S0103-863X2009000100004.