Allkadri, Syarif Ishak. “Alat Bantu Tunanetra Menggunakan Sensor Ultrasonik Berbasis Arduino Nano”. Electrical Network Systems and Sources 2, no. 1 (Januari 1, 2023): 15-19. Diakses Mei 22, 2024. https://jurnal.politap.ac.id/index.php/entries/article/view/1128.