Márcia Dornelles Machado Mariot, Lílian Cordova do Espirito Santo, Fernando Riegel. “Implementation of the Strategy Breastfeeds and Feeds Brazil: Tutors’ Perceptions ”. Rev Enferm UFPI, vol. 9, nº 1, novembro de 2020, http://periodicos.ufpi.br/index.php/reufpi/article/view/671.