Edeh, J. C., C. P. Nwadinobi, and E. C. Obetta. “Development and Deployment of Quadcopter in Silos’ Inspection and Surveillance”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 17, no. 4 (December 1, 2021): 429-438. Accessed September 14, 2025. http://www.azojete.com/index.php/azojete/article/view/509.