Achmad Deddy Kurniawan, Bambang Kurniawan, Rika Melyani, Yuda Irawan. Automatic Dispenser Prevents Covid Transmission Using Ultrasonic Sensor and Arduino Uno. J.App.So.Inf.Sc [Internet]. 2023 Sep. 24 [cited 2026 Sep. 5];5(1):1-12. Available from: https://e-journal.ptti.info/index.php/jasis/article/view/107