Lamptey, Emmanuel, and Dorcas Serwaa. “The Use of Zipline Drones Technology for COVID-19 Samples Transportation in Ghana”. HighTech and Innovation Journal 1, no. 2 (June 1, 2020): 67–71. Accessed September 14, 2025. https://www.hightechjournal.org/index.php/HIJ/article/view/18.