1.
Al Jihad NG, Fatih Mufadhdhal M, Aprianto R. Design and Development of a Countdown Timer System in the Passenger Pickup and Drop-off Area Based on Ultrasonic Sensor. Jurnal Perintis [Internet]. 2026 Apr. 23 [cited 2026 Apr. 29];2(2(Maret-April):83-91. Available from: https://ejournal.pktj.ac.id/index.php/perintis/article/view/117