FITRIYANI, Y. Security Door System Using Knock Sensor Based On Arduino Uno. Jurnal Info Sains : Informatika dan Sains, [S. l.], v. 12, n. 1, p. 13–17, 2022. DOI: 10.54209/infosains.v12i1.150. Disponível em: https://ejournal.seaninstitute.or.id/index.php/InfoSains/article/view/150. Acesso em: 28 apr. 2026.