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 (Nov. 2021), 49–54. DOI:https://doi.org/10.29080/systemic.v7i1.1096.