Kunlerd, A., Nabumroong, B., Vongvas, N., Lakharapol, T., Ruttanaprasert, R. and Burana, K. 2026. A Solar Powered Ultrasonic Water Level Monitoring System with IoT Type for Small-Scale Agricultural Water Management . Recent Science and Technology. 18, 2 (Apr. 2026), Article e269459. DOI:https://doi.org/10.65411/rst.2026.269459.