Report Swedish Postal market 2019 [documento eletrónico] / Swedish Post and Telecom Authority
Annual report 2019 [documento electrónico] / Malta Post Slogan
The Universal Postal Union e-commerce guide [documento eletrónico] / Daniel Nieto Corredera
Postal development report 2020 [documento eletrónico] : achieving higher performance amid a major crisis / Mauro Boffa, Fernão De Borba and Lukasz Piotrowski
Postal economic outlook 2020 [documento eletrónico] : navigating accelerated change during an unprecedented crisis / Mauro Boffa, Fernão De Borba and Lukasz Piotrowski
e-Commerce report [documento eletrónico] : CTT 2020 / ed. Correios de Portugal. Direção de E-Commerce