“Study Of Forward - Reverse Mototr Control System Using Zelio Smart Relay in Fild Work Activities: Studi Sistem Kendali Motor Forward–Reverse Menggunakan Smart Relay Zelio Pada Kegiatan Praktik Kerja Lapangan” (2026) Procedia of Engineering and Life Science, 10(1), pp. 90–95. doi:10.21070/pels.v10i1.3163.