Meeta Vadhel4 , Prof. Rupali Advirkar5, Aniket Wani1 Krutika Thakur2, Nikhil Vaze3,. 2017. “RFID Based Intelligent Trolley System Using Zigbee”. International Journal of Engineering and Computer Science 4 (03). india. http://ijecs.in/index.php/ijecs/article/view/1036.