Billy Montolalu, Hamzah Ulinuha Mustakim, and Nilla Rachmaningrum. 2021. “Notifikasi Real-Time Pada Sistem Nurse Call Nirkabel Berbasis Zigbee Menggunakan Protokol WebSocket”. Systemic: Information System and Informatics Journal 7 (1):49-54. https://doi.org/10.29080/systemic.v7i1.1096.