Soares, L.; Oliveira, F.; Lemos, M. S.; Lucas, C. V.; Botella, L.; Corbella, S. Motivation for Therapy: An Important Ingredient to Change?. RPI 2012, 4 (1), 640-648. https://doi.org/10.18256/2175-5027/psico-imed.v4n1p640-648.