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		Kusuma Jaya, I Putu, 		Widagda, I Gusti Agung, AND 		Antha Kasmawan, I Gde.
"Rancang Bangun Sistem Pendeteksi Ketinggian Air Jarak Jauh Menggunakan Sensor HC-SR04 dan Modul GSM SIM800L Berbasis Mikrokontroler ATMega 328" <em>BULETIN FISIKA</em> [Online], Volume 24 Number 1 (30 October 2021)