1. Aker, J. C. (2011). Dial “A” for agriculture: A review of information and communication technologies for agricultural extension in developing countries. Agricultural Economics, 42, 631–647.
2. Amazon, E. (2010). Amazon elastic compute cloud (Amazon EC2) Amazon Elastic Compute Cloud (Amazon EC2).
3. Amazon, E. (2013). Amazon Elastic Block Store (EBS) Amazon Web Services Inc.
4. Arias, M., & Inglada, J. (2015). Sentinel-2 for agriculture design justification file ESA Sentinel-2 for agriculture project.
5. Arjomandi, M., Agostino, S., Mammone, M., Nelson, M., & Zhou, T. (2006). Classification of unmanned aerial vehicles report for mechanical engineering class, University of Adelaide, Adelaide.