M. A. Safiuddin and A. H. Falah, “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”, PELS, vol. 10, no. 1, pp. 90–95, Oct. 2026.