MAKMUR, Alfhian; SIAULHAK. DEVELOPMENT OF A RIVER WATER LEVEL MONITORING SYSTEM IN BONELEMO VILLAGE BASED ON ARDUINO MICROCONTROLLER USING ULTRASONIC SENSORS AND SMS GATEWAY. Edutech: Jurnal Pendidikan dan Teknologi, [S. l.], v. 1, n. 1, p. 7–10, 2023. DOI: 10.53696/29872359.86. Disponível em: https://pustaka.my.id/journals/edutech/article/view/86. Acesso em: 10 oct. 2026.