1. Secretaria de Educação do Estado do Ceará (SEDUC), Fortaleza, Brazil
2. Secretaria de Educação de Fortaleza (SME), Fortaleza, Brazil
3. Solvay Business School, Université Libre de Bruxelles, Brussels, Belgium
4. CIDEF, ISMAT – Instituto Superior Manuel Teixeira Gomes, Portimão, Portugal
5. Statistics Department, California Polytechnic State University, San Luis Obispo, CA, USA