A link is provided to a document written by the UPU on how to solve some worldwide problems.https://www.upu.int/en/Publications/Postal-Social-Services/UPU-Guide-to-Postal-Social-Services#.YIqwWEXbrCM.link
A link is provided to a document written by the UPU on how to solve some worldwide problems.https://www.upu.int/en/Publications/Postal-Social-Services/UPU-Guide-to-Postal-Social-Services#.YIqwWEXbrCM.link