Sant’Anna, Sabrina Sá, Denilson Arlindo de Souza, Cornélio de Freitas Carvalho, and Maria Irene Yoshida. 2008. “Morphological and Thermal Analyses of Flexible Polyurethane Foams Containing Commercial Calcium Carbonate”. Eclética Química 33 (2):55-60. https://doi.org/10.26850/1678-4618eqj.v33.2.2008.p55-60.