SILVA, Juliana Maria Oliveira et al.
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<strong>Mercator</strong>, Fortaleza, v. 7, n. 13, p. p. 153 a 157, nov. 2008.
ISSN 1984-2201.
Disponible en: &lt;<a href="http://www.mercator.ufc.br/mercator/article/view/34" target="_new">http://www.mercator.ufc.br/mercator/article/view/34</a>&gt;. Fecha de acceso: 15 nov. 2025