Matéria do sebrae. http://www.sebrae.com.br/sites/PortalSebrae/artigos/para-ter-uma-empresa-saudavel-e-preciso-controlar-o-fluxo-de-caixa,e27a5415e6433410VgnVCM1000003b74010aRCRD
History GCSE AQA B: Modern World History - International Relations: Conflict and Peace in the 20th Century - Topic 2: Peacemaking 1918-19 and the League of Nations