Hoque, Md Jiabul, Md Razu Ahmed, Md Akibur Rahman, and Shihab Uddin. “Real Time Secure Messaging Service for Internet of Things Applications Using MQTT”. IIUC Studies 17, no. 1 (August 23, 2021): 27–42. Accessed May 16, 2022. https://banglajol.info/index.php/IIUCS/article/view/54982.