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. Songkhla, Thailand, 18(2), p. Article e269459. doi: 10.65411/rst.2026.269459.