Relatório Integrado 1º semestre 2021 [documento eletrónico] : CTT a nossa entrega é total / Correios de Portugal
Relatório anual : 2020 / Correios e Telecomunicações de Macau
2020 report [documento eletrónico] : Republic of Ireland quality of postal service monitor / Communications Regulation Commission
Annual report of the communications regulation commission for 2020 [documento digital] : analysis of the postal services market 2020 / Communications Regulation Commission
Report Swedish Postal market 2020 [documento eletrónico] / Swedish Post and Telecom Authority
Annual report 2021 [documento electrónico] / Malta Post, p.l.c.
Report on the state of the postal market in 2020 [documento electrónico] / Office of Electronic Communications
Report of the Estonian Competition Authority [documento electrónico] : on the developments and problems in the field of postal services and on the activities of the Estonian Competition Authority in this field in 2020 / Eesti Post