Citation

https://www.google.com/search?q=sustainable+transportation&oq=sustainable+tran&aqs=chrome.0.0i512j0i20i263i512j69i57j0i512l7.12356j0j15&sourceid=chrome&ie=UTF-8

https://www.futurelearn.com/info/courses/principles-global-management-logistics-assets/0/steps/65241#:~:text=So%2C%20what%20are%20the%207,customer%2C%20at%20the%20Right%20price.

https://www.sciencedirect.com/science/article/abs/pii/S2352550921003602#:~:text=certified%20organic%20fibers.-,The%207%20Rs%20sustainable%20packaging%20framework,recycle%2C%20repurpose%2C%20and%20rot.

https://www.aajenterprises.com/7-rs-logistics-supply-chain-management/