Voerkelius, S. (2000) “INVESTIGATIONS WATER MANAGEMENT AND WATER QUALITY IN PICOS/ PIAUÍ AND TAUÁ /CEARÁ WITHIN THE BILATERAL WAVES PROGRAM IN NORTHEAST BRAZIL”, Águas Subterrâneas. Disponível em: https://aguassubterraneas.abas.org/asubterraneas/article/view/24306 (Acessado: 9 março 2025).