Samudra E, Narto A, Sapan Y, Utari R. Rancang Bangun Prototype Alat Peraga Pengoperasian Palka dengan Rain Sensor. Gema-Maritim [Internet]. 2023Mar.31 [cited 2026Apr.16];25(1):28-. Available from: http://e-journal.akpelni.ac.id/index.php/Gema-Maritim/article/view/427