1. Here Is Why it Will Work. Forbes Magazinehttps://www.forbes.com/sites/stevebanker/2013/12/19/amazon-drones-here-is-why-it-will-work
2. Drone Delivery: DHL ‘Parcelcopter’ Flies to German Isle. Reuterswww.reuters.com/article/us-deutsche-post-drones/drone-deliverydhl-parcelcopter-flies-to-german-isle-idUSKCN0HJ1ED20140924
3. 2019 World Civil Unmanned Aerial Systems Market Profile & Forecasthttp://tealgroup.com/images/TGCTOC/WCUAS2019TOC_EO.pdf
4. The Most Staggering Part About Amazon’s Upcoming Drone Delivery Servicehttps://www.businessinsider.com/cost-savings-from-amazon-drone-deliveries-2016-6