Chansungnoen, T., Pantong, P., Chatkoh, T. ., & Ritthison, W. (2020). Development of a Short-text Alarm Water Level Meter for Small Reservoirs with Ultrasonic Sensors. Journal of Vongchavalitkul university, 33(2), 71–77. retrieved from https://ph01.tci-thaijo.org/index.php/vujournal/article/view/243744