“RANCANG BANGUN PENGELOLAAN LAB BERBASIS FIREBASE CLOUD MESSAGING DAN MOTION DETECTION CAMERA MENGGUNAKAN RASPBERRY PI”. Elkom: Jurnal Elektronika dan Komputer 12, no. 2 (December 18, 2019): 15–21. Accessed June 25, 2026. https://journal.stekom.ac.id/index.php/elkom/article/view/97.