Alat Bantu Navigasi Tunanetra Menggunakan Modul GPS Dan Sensor Ultrasonik Berbasis Raspberry Pi. Com, Engine, Sys, Sci [Internet]. 2024 Jan. 12 [cited 2026 Mar. 20];9(1):128-39. Available from: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/54323