«EMTE, S.A.».investing.businessweek.com.Bloomberg. Arxivat de l'original el d’octubre 9, 2012.[Consulta: 12 January].«As of July 15, 2009, EMTE, S.A. was acquired by Comsa, S.A.»
«EMTE, S.A.».investing.businessweek.com.Bloomberg. Arxivat de l'original el d’octubre 9, 2012.[Consulta: 12 January].«As of July 15, 2009, EMTE, S.A. was acquired by Comsa, S.A.»