Atenaga, Michael, and Samuel Azi. “A Low-Cost Lidar Based IoT System for Real-Time Remote Groundwater Level Monitoring: Design, Validation and Field Deployment”. Nigerian Journal of Physics 35, no. 4 (August 9, 2026): 318–322. Accessed September 10, 2026. https://njp.nipngr.org/index.php/njp/article/view/625.