Perancangan Alat Pengukur Kedalaman Air Menggunakan Sensor Ultrasonik HC-SR04 Berbasis Web di Danau Duta Harapan. Com, Engine, Sys, Sci [Internet]. 2025 Jan. 31 [cited 2026 Mar. 21];10(1):286-98. Available from: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/65929