An approved licensed vendor of the USPS, Stamps.com allows you to buy and print mailing and shipping labels for all USPS mail classes using a standard ink-jet or laser printer. There is a monthly service fee of $19.99 plus applicable taxes, if any to use the service. ...
USPS. Mailing Standards of the United States Postal Service, International Mail Manual. 2021. Available online:https://navytribe.com/wp-content/uploads/2015/11/imm.pdf(accessed on 21 December 2021). Roby, B.B.; Taufique, Z.; Redmann, A.; Jayawardena, A.D.; Chinnadurai, S. Ethical di...