“Implementasi Lampu Peringatan Pada Perlintasan Tanpa Palang Pintu Kereta Api Berbasis Mikrokontroler”. Journal of Applied Smart Electrical Network and Systems 2, no. 01 (June 30, 2021): 38–42. Accessed February 8, 2026. https://journal.isas.or.id/index.php/JASENS/article/view/188.