Relatório de atividades 2016 / Fundação GDA
Diretório das TIC : empresas e profissionais 2018/2019 / ed. APDC e IDC
Credite suisse global investment returns yearbook 2018 : thought leadership from Credit Suisse Research and the world's foremost experts / Elroy Dimson, Paul Marsh, Mike Staunton
Measuring the digital transformation : a roadmap for the future / Organisation for Economic co-Operation and Development